From 94f0cf0ef8f57b16377f6182f298bace1bdacf7b Mon Sep 17 00:00:00 2001
From: Randell Dawson <5313213+RandellDawson@users.noreply.github.com>
Date: Thu, 8 Oct 2020 05:18:47 -0700
Subject: [PATCH] chore(learn): Remove remaining isHidden keys from frontmatter
 (English and Chinese challenges) (#39809)

* fix: remove isHidden key from tool template

* fix: removed isHidden key from English challenges

* fix: remove isHidden key from Chinese challenges
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diff --git a/curriculum/challenges/chinese/05-apis-and-microservices/apis-and-microservices-projects/exercise-tracker.md b/curriculum/challenges/chinese/05-apis-and-microservices/apis-and-microservices-projects/exercise-tracker.md
index 2274552748a..45f27fdc7b2 100644
--- a/curriculum/challenges/chinese/05-apis-and-microservices/apis-and-microservices-projects/exercise-tracker.md
+++ b/curriculum/challenges/chinese/05-apis-and-microservices/apis-and-microservices-projects/exercise-tracker.md
@@ -1,7 +1,6 @@
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diff --git a/curriculum/challenges/chinese/05-apis-and-microservices/apis-and-microservices-projects/file-metadata-microservice.md b/curriculum/challenges/chinese/05-apis-and-microservices/apis-and-microservices-projects/file-metadata-microservice.md
index 79b602565f7..b6a99e2cb79 100644
--- a/curriculum/challenges/chinese/05-apis-and-microservices/apis-and-microservices-projects/file-metadata-microservice.md
+++ b/curriculum/challenges/chinese/05-apis-and-microservices/apis-and-microservices-projects/file-metadata-microservice.md
@@ -1,7 +1,6 @@
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-isHidden: false
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 ---
diff --git a/curriculum/challenges/chinese/05-apis-and-microservices/apis-and-microservices-projects/request-header-parser-microservice.md b/curriculum/challenges/chinese/05-apis-and-microservices/apis-and-microservices-projects/request-header-parser-microservice.md
index 090e942daa0..739de727dc0 100644
--- a/curriculum/challenges/chinese/05-apis-and-microservices/apis-and-microservices-projects/request-header-parser-microservice.md
+++ b/curriculum/challenges/chinese/05-apis-and-microservices/apis-and-microservices-projects/request-header-parser-microservice.md
@@ -1,7 +1,6 @@
 ---
 id: bd7158d8c443edefaeb5bdff
 challengeType: 4
-isHidden: false
 forumTopicId: 301507
 title: 请求头解析器
 ---
diff --git a/curriculum/challenges/chinese/05-apis-and-microservices/apis-and-microservices-projects/timestamp-microservice.md b/curriculum/challenges/chinese/05-apis-and-microservices/apis-and-microservices-projects/timestamp-microservice.md
index af0bd109941..92cdc6753b1 100644
--- a/curriculum/challenges/chinese/05-apis-and-microservices/apis-and-microservices-projects/timestamp-microservice.md
+++ b/curriculum/challenges/chinese/05-apis-and-microservices/apis-and-microservices-projects/timestamp-microservice.md
@@ -1,7 +1,6 @@
 ---
 id: bd7158d8c443edefaeb5bdef
 challengeType: 4
-isHidden: false
 forumTopicId: 301508
 title: 时间戳
 ---
diff --git a/curriculum/challenges/chinese/05-apis-and-microservices/apis-and-microservices-projects/url-shortener-microservice.md b/curriculum/challenges/chinese/05-apis-and-microservices/apis-and-microservices-projects/url-shortener-microservice.md
index 7fd91261ee1..a98a3f328d6 100644
--- a/curriculum/challenges/chinese/05-apis-and-microservices/apis-and-microservices-projects/url-shortener-microservice.md
+++ b/curriculum/challenges/chinese/05-apis-and-microservices/apis-and-microservices-projects/url-shortener-microservice.md
@@ -1,7 +1,6 @@
 ---
 id: bd7158d8c443edefaeb5bd0e
 challengeType: 4
-isHidden: false
 forumTopicId: 301509
 title: 短网址
 ---
diff --git a/curriculum/challenges/chinese/06-quality-assurance/quality-assurance-projects/american-british-translator.md b/curriculum/challenges/chinese/06-quality-assurance/quality-assurance-projects/american-british-translator.md
index a2f37c2bd19..af34949bb81 100644
--- a/curriculum/challenges/chinese/06-quality-assurance/quality-assurance-projects/american-british-translator.md
+++ b/curriculum/challenges/chinese/06-quality-assurance/quality-assurance-projects/american-british-translator.md
@@ -1,7 +1,6 @@
 ---
 id: 5e601c0d5ac9d0ecd8b94afe
 challengeType: 4
-isHidden: false
 ---
 
 ## Description
diff --git a/curriculum/challenges/chinese/06-quality-assurance/quality-assurance-projects/sudoku-solver.md b/curriculum/challenges/chinese/06-quality-assurance/quality-assurance-projects/sudoku-solver.md
index 1c37f1497b2..b33399195a6 100644
--- a/curriculum/challenges/chinese/06-quality-assurance/quality-assurance-projects/sudoku-solver.md
+++ b/curriculum/challenges/chinese/06-quality-assurance/quality-assurance-projects/sudoku-solver.md
@@ -1,7 +1,6 @@
 ---
 id: 5e601bf95ac9d0ecd8b94afd
 challengeType: 4
-isHidden: false
 ---
 
 ## Description
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/build-your-own-functions.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/build-your-own-functions.md
index 3991b17a5a4..2bf89e994ae 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/build-your-own-functions.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/build-your-own-functions.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f060b6c005b0e76f05b
 challengeType: 11
-isHidden: false
 videoId: nLDychdBwUg
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/comparing-and-sorting-tuples.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/comparing-and-sorting-tuples.md
index e9ffb3334ae..81fb0d05b26 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/comparing-and-sorting-tuples.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/comparing-and-sorting-tuples.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f0b0b6c005b0e76f06d
 challengeType: 11
-isHidden: false
 videoId: dZXzBXUxxCs
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/conditional-execution.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/conditional-execution.md
index b6bbdc1bc72..771d2402152 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/conditional-execution.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/conditional-execution.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f050b6c005b0e76f058
 challengeType: 11
-isHidden: false
 videoId: gz_IfIsZQtc
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/data-visualization-mailing-lists.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/data-visualization-mailing-lists.md
index c975cce0151..bd994102b34 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/data-visualization-mailing-lists.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/data-visualization-mailing-lists.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f6a0b6c005b0e76f097
 challengeType: 11
-isHidden: false
 videoId: RYdW660KkaQ
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/data-visualization-page-rank.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/data-visualization-page-rank.md
index 4a4a2bb33c8..dac30084eb2 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/data-visualization-page-rank.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/data-visualization-page-rank.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f6a0b6c005b0e76f096
 challengeType: 11
-isHidden: false
 videoId: 6-w_qIUwaxU
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/dictionaries-and-loops.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/dictionaries-and-loops.md
index 08426541265..5766651c23a 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/dictionaries-and-loops.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/dictionaries-and-loops.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f0a0b6c005b0e76f069
 challengeType: 11
-isHidden: false
 videoId: EEmekKiKG70
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/dictionaries-common-applications.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/dictionaries-common-applications.md
index c76a881aecf..633566972c4 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/dictionaries-common-applications.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/dictionaries-common-applications.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f090b6c005b0e76f068
 challengeType: 11
-isHidden: false
 videoId: f17xPfIXct0
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/files-as-a-sequence.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/files-as-a-sequence.md
index 151e9021844..3f4d4363408 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/files-as-a-sequence.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/files-as-a-sequence.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f080b6c005b0e76f063
 challengeType: 11
-isHidden: false
 videoId: cIA0EokbaHE
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/intermediate-expressions.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/intermediate-expressions.md
index bd31e6cf60c..d7e8f046cf9 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/intermediate-expressions.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/intermediate-expressions.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f050b6c005b0e76f057
 challengeType: 11
-isHidden: false
 videoId: dKgUaIa5ATg
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/intermediate-strings.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/intermediate-strings.md
index e333f3ce96c..a5d039b99bd 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/intermediate-strings.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/intermediate-strings.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f070b6c005b0e76f061
 challengeType: 11
-isHidden: false
 videoId: KgT_fYLXnyk
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/introduction-elements-of-python.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/introduction-elements-of-python.md
index d490eed76da..be3dbef4f70 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/introduction-elements-of-python.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/introduction-elements-of-python.md
@@ -1,7 +1,6 @@
 ---
 id: 5e6a54c358d3af90110a60a3
 challengeType: 11
-isHidden: false
 videoId: aRY_xjL35v0
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/introduction-hardware-achitecture.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/introduction-hardware-achitecture.md
index 6e762e64830..0c187eacbfa 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/introduction-hardware-achitecture.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/introduction-hardware-achitecture.md
@@ -1,7 +1,6 @@
 ---
 id: 5e6a54af58d3af90110a60a1
 challengeType: 11
-isHidden: false
 videoId: H6qtjRTfSog
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/introduction-python-as-a-language.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/introduction-python-as-a-language.md
index ccf4917ee25..715e7395fb5 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/introduction-python-as-a-language.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/introduction-python-as-a-language.md
@@ -1,7 +1,6 @@
 ---
 id: 5e6a54ba58d3af90110a60a2
 challengeType: 11
-isHidden: false
 videoId: 0QeGbZNS_bY
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/introduction-why-program.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/introduction-why-program.md
index dfad6a06acb..7b20405d770 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/introduction-why-program.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/introduction-why-program.md
@@ -1,7 +1,6 @@
 ---
 id: 5e6a54a558d3af90110a60a0
 challengeType: 11
-isHidden: false
 videoId: 3muQV-Im3Z0
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/iterations-definite-loops.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/iterations-definite-loops.md
index 6cfad594824..67b0e8b530f 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/iterations-definite-loops.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/iterations-definite-loops.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f070b6c005b0e76f05d
 challengeType: 11
-isHidden: false
 videoId: hiRTRAqNlpE
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/iterations-loop-idioms.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/iterations-loop-idioms.md
index f5f31584e54..4123a3097bf 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/iterations-loop-idioms.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/iterations-loop-idioms.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f070b6c005b0e76f05e
 challengeType: 11
-isHidden: false
 videoId: AelGAcoMXbI
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/iterations-more-patterns.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/iterations-more-patterns.md
index bc4d0150d3d..a70801ab380 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/iterations-more-patterns.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/iterations-more-patterns.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f070b6c005b0e76f05f
 challengeType: 11
-isHidden: false
 videoId: 9Wtqo6vha1M
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/loops-and-iterations.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/loops-and-iterations.md
index 2f25b4d369a..565eb2fbda6 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/loops-and-iterations.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/loops-and-iterations.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f060b6c005b0e76f05c
 challengeType: 11
-isHidden: false
 videoId: dLA-szNRnUY
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/make-a-relational-database.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/make-a-relational-database.md
index 0d5512ec7cc..d9fa2f12f2b 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/make-a-relational-database.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/make-a-relational-database.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f170b6c005b0e76f08b
 challengeType: 11
-isHidden: false
 videoId: MQ5z4bdF92U
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/more-conditional-structures.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/more-conditional-structures.md
index 90ed1638a92..502626d38d2 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/more-conditional-structures.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/more-conditional-structures.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f060b6c005b0e76f059
 challengeType: 11
-isHidden: false
 videoId: HdL82tAZR20
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/networking-protocol.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/networking-protocol.md
index 5db818d1ce0..50caee9f00d 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/networking-protocol.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/networking-protocol.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f0c0b6c005b0e76f072
 challengeType: 11
-isHidden: false
 videoId: c6vZGescaSc
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/networking-text-processing.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/networking-text-processing.md
index 5ba41efba35..2d44d8fb322 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/networking-text-processing.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/networking-text-processing.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f0c0b6c005b0e76f074
 challengeType: 11
-isHidden: false
 videoId: Pv_pJgVu8WI
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/networking-using-urllib-in-python.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/networking-using-urllib-in-python.md
index 21af5cc4336..5aeb4d2c9da 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/networking-using-urllib-in-python.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/networking-using-urllib-in-python.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f0d0b6c005b0e76f075
 challengeType: 11
-isHidden: false
 videoId: 7lFM1T_CxBs
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/networking-web-scraping-with-python.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/networking-web-scraping-with-python.md
index 216ba78c03d..eb7ba110604 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/networking-web-scraping-with-python.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/networking-web-scraping-with-python.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f0d0b6c005b0e76f076
 challengeType: 11
-isHidden: false
 videoId: Uyioq2q4cEg
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/networking-with-python.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/networking-with-python.md
index d63b95ea1fc..7582a387597 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/networking-with-python.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/networking-with-python.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f0c0b6c005b0e76f071
 challengeType: 11
-isHidden: false
 videoId: _kJvneKVdNM
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/networking-write-a-web-browser.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/networking-write-a-web-browser.md
index 5c2a6d6a77e..70bd5a7fad0 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/networking-write-a-web-browser.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/networking-write-a-web-browser.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f0c0b6c005b0e76f073
 challengeType: 11
-isHidden: false
 videoId: zjyT9DaAjx4
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/object-lifecycle.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/object-lifecycle.md
index 2e9569d1efa..02bb16fb199 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/object-lifecycle.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/object-lifecycle.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f170b6c005b0e76f087
 challengeType: 11
-isHidden: false
 videoId: p1r3h_AMMIM
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/objects-a-sample-class.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/objects-a-sample-class.md
index 87417ca36ac..dd44be6ce97 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/objects-a-sample-class.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/objects-a-sample-class.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f160b6c005b0e76f086
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-isHidden: false
 videoId: FiABKEuaSJ8
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/objects-inheritance.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/objects-inheritance.md
index 457f8c9a2fe..37933eb4fad 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/objects-inheritance.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/objects-inheritance.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f170b6c005b0e76f088
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-isHidden: false
 videoId: FBL3alYrxRM
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/python-dictionaries.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/python-dictionaries.md
index 460dcdcb4c9..4a8309b36ae 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/python-dictionaries.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/python-dictionaries.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f090b6c005b0e76f067
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 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/python-functions.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/python-functions.md
index cf32f957bf9..db7e465884a 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/python-functions.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/python-functions.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f060b6c005b0e76f05a
 challengeType: 11
-isHidden: false
 videoId: 3JGF-n3tDPU
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/python-lists.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/python-lists.md
index db1899c0ffe..b8fca053dbb 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/python-lists.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/python-lists.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f080b6c005b0e76f064
 challengeType: 11
-isHidden: false
 videoId: Y0cvfDpYC_c
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/python-objects.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/python-objects.md
index f09aff2ca00..8b5eb9a4122 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/python-objects.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/python-objects.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f160b6c005b0e76f085
 challengeType: 11
-isHidden: false
 videoId: uJxGeTYy0us
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/reading-files.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/reading-files.md
index d7a2f09adbe..4553df580dd 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/reading-files.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/reading-files.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f080b6c005b0e76f062
 challengeType: 11
-isHidden: false
 videoId: Fo1tW09KIwo
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/regular-expressions-matching-and-extracting-data.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/regular-expressions-matching-and-extracting-data.md
index 05901cf85b9..88ee691042a 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/regular-expressions-matching-and-extracting-data.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/regular-expressions-matching-and-extracting-data.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f0b0b6c005b0e76f06f
 challengeType: 11
-isHidden: false
 videoId: LaCZnTbQGkE
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/regular-expressions-practical-applications.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/regular-expressions-practical-applications.md
index c46aaa5a5d8..f14177f842e 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/regular-expressions-practical-applications.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/regular-expressions-practical-applications.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f0b0b6c005b0e76f070
 challengeType: 11
-isHidden: false
 videoId: xCjFU9G6x48
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/regular-expressions.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/regular-expressions.md
index e347248b6d1..f7bf49adb39 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/regular-expressions.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/regular-expressions.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f0b0b6c005b0e76f06e
 challengeType: 11
-isHidden: false
 videoId: Yud_COr6pZo
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/relational-database-design.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/relational-database-design.md
index e826f3f384c..f697519258e 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/relational-database-design.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/relational-database-design.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f180b6c005b0e76f08c
 challengeType: 11
-isHidden: false
 videoId: AqdfbrpkbHk
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/relational-databases-and-sqlite.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/relational-databases-and-sqlite.md
index 3be2aec8e2f..ef864b48211 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/relational-databases-and-sqlite.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/relational-databases-and-sqlite.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f170b6c005b0e76f08a
 challengeType: 11
-isHidden: false
 videoId: QlNod5-kFpA
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/relational-databases-join-operation.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/relational-databases-join-operation.md
index 209bb600b43..135291af5ee 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/relational-databases-join-operation.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/relational-databases-join-operation.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f180b6c005b0e76f08f
 challengeType: 11
-isHidden: false
 videoId: jvDw3D9GKac
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/relational-databases-many-to-many-relationships.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/relational-databases-many-to-many-relationships.md
index 7cdc8a6f4c7..57ba4b2b888 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/relational-databases-many-to-many-relationships.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/relational-databases-many-to-many-relationships.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f190b6c005b0e76f090
 challengeType: 11
-isHidden: false
 videoId: z-SBYcvEQOc
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/relational-databases-relationship-building.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/relational-databases-relationship-building.md
index c7d1ca93699..65fb57c3b7c 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/relational-databases-relationship-building.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/relational-databases-relationship-building.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f180b6c005b0e76f08e
 challengeType: 11
-isHidden: false
 videoId: CSbqczsHVnc
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/representing-relationships-in-a-relational-database.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/representing-relationships-in-a-relational-database.md
index cb50d2dbbbb..582ec539236 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/representing-relationships-in-a-relational-database.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/representing-relationships-in-a-relational-database.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f180b6c005b0e76f08d
 challengeType: 11
-isHidden: false
 videoId: -orenCNdC2Q
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/strings-and-lists.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/strings-and-lists.md
index 07be8eba528..2d4789135ce 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/strings-and-lists.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/strings-and-lists.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f090b6c005b0e76f066
 challengeType: 11
-isHidden: false
 videoId: lxcFa7ldCi0
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/strings-in-python.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/strings-in-python.md
index 2b34db2d6c4..7583f6c289f 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/strings-in-python.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/strings-in-python.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f070b6c005b0e76f060
 challengeType: 11
-isHidden: false
 videoId: LYZj207fKpQ
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/the-tuples-collection.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/the-tuples-collection.md
index e9bdf6d6508..2935b08c9f3 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/the-tuples-collection.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/the-tuples-collection.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f0a0b6c005b0e76f06c
 challengeType: 11
-isHidden: false
 videoId: 3Lxpladfh2k
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/using-web-services.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/using-web-services.md
index 2eb2879a3a9..f158ddfdb2e 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/using-web-services.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/using-web-services.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f0e0b6c005b0e76f07a
 challengeType: 11
-isHidden: false
 videoId: oNl1OVDPGKE
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/variables-expressions-and-statements.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/variables-expressions-and-statements.md
index 78c06f00682..0ad88cac5d5 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/variables-expressions-and-statements.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/variables-expressions-and-statements.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f050b6c005b0e76f056
 challengeType: 11
-isHidden: false
 videoId: nELR-uyyrok
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/visualizing-data-with-python.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/visualizing-data-with-python.md
index 048c43215ca..d5fd4953c90 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/visualizing-data-with-python.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/visualizing-data-with-python.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f690b6c005b0e76f095
 challengeType: 11
-isHidden: false
 videoId: e3lydkH0prw
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/web-services-api-rate-limiting-and-security.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/web-services-api-rate-limiting-and-security.md
index 1d97e7981f8..5efd757e08c 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/web-services-api-rate-limiting-and-security.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/web-services-api-rate-limiting-and-security.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f150b6c005b0e76f080
 challengeType: 11
-isHidden: false
 videoId: pI-g0lI8ngs
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/web-services-apis.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/web-services-apis.md
index d48745d3d3d..fbadda24f84 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/web-services-apis.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/web-services-apis.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f150b6c005b0e76f07f
 challengeType: 11
-isHidden: false
 videoId: oUNn1psfBJg
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/web-services-json.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/web-services-json.md
index 10794d65084..77601948fa2 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/web-services-json.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/web-services-json.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f140b6c005b0e76f07d
 challengeType: 11
-isHidden: false
 videoId: ZJE-U56BppM
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/web-services-service-oriented-approach.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/web-services-service-oriented-approach.md
index 7bb6644b279..70e62d398e5 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/web-services-service-oriented-approach.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/web-services-service-oriented-approach.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f140b6c005b0e76f07e
 challengeType: 11
-isHidden: false
 videoId: muerlsCHExI
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/web-services-xml-schema.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/web-services-xml-schema.md
index e70bba06482..e5f0dbee671 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/web-services-xml-schema.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/web-services-xml-schema.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f0e0b6c005b0e76f07c
 challengeType: 11
-isHidden: false
 videoId: yWU9kTxW-nc
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/web-services-xml.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/web-services-xml.md
index 2cd1911d5ea..279a25bd051 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/web-services-xml.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/web-services-xml.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f0e0b6c005b0e76f07b
 challengeType: 11
-isHidden: false
 videoId: _pZ0srbg7So
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/working-with-lists.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/working-with-lists.md
index c73065b07e7..b2ee9ea938f 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/working-with-lists.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/python-for-everybody/working-with-lists.md
@@ -1,7 +1,6 @@
 ---
 id: 5e7b9f090b6c005b0e76f065
 challengeType: 11
-isHidden: false
 videoId: lCnHfTHkhbE
 ---
 
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/scientific-computing-with-python-projects/arithmetic-formatter.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/scientific-computing-with-python-projects/arithmetic-formatter.md
index 462d29050a5..8035b0c1978 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/scientific-computing-with-python-projects/arithmetic-formatter.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/scientific-computing-with-python-projects/arithmetic-formatter.md
@@ -1,7 +1,6 @@
 ---
 id: 5e44412c903586ffb414c94c
 challengeType: 10
-isHidden: false
 ---
 
 ## Description
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/scientific-computing-with-python-projects/budget-app.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/scientific-computing-with-python-projects/budget-app.md
index 1dcc3f096a7..e06d868f086 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/scientific-computing-with-python-projects/budget-app.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/scientific-computing-with-python-projects/budget-app.md
@@ -1,7 +1,6 @@
 ---
 id: 5e44413e903586ffb414c94e
 challengeType: 10
-isHidden: false
 ---
 
 ## Description
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/scientific-computing-with-python-projects/polygon-area-calculator.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/scientific-computing-with-python-projects/polygon-area-calculator.md
index 7f6f172e04e..bcb91cbdfc8 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/scientific-computing-with-python-projects/polygon-area-calculator.md
+++ b/curriculum/challenges/chinese/07-scientific-computing-with-python/scientific-computing-with-python-projects/polygon-area-calculator.md
@@ -1,7 +1,6 @@
 ---
 id: 5e444147903586ffb414c94f
 challengeType: 10
-isHidden: false
 ---
 
 ## Description
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/scientific-computing-with-python-projects/probability-calculator.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/scientific-computing-with-python-projects/probability-calculator.md
index 6cb38166818..67a59a92700 100644
--- a/curriculum/challenges/chinese/07-scientific-computing-with-python/scientific-computing-with-python-projects/probability-calculator.md
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 ## Description
diff --git a/curriculum/challenges/chinese/07-scientific-computing-with-python/scientific-computing-with-python-projects/time-calculator.md b/curriculum/challenges/chinese/07-scientific-computing-with-python/scientific-computing-with-python-projects/time-calculator.md
index 7f89adf8392..9ad977b6f45 100644
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 ## Description
diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/data-analysis-example-a.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/data-analysis-example-a.md
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diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/data-analysis-example-b.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/data-analysis-example-b.md
index 8920361b67b..081daa0959f 100644
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diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/data-cleaning-and-visualizations.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/data-cleaning-and-visualizations.md
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diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/data-cleaning-duplicates.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/data-cleaning-duplicates.md
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diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/data-cleaning-introduction.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/data-cleaning-introduction.md
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diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/data-cleaning-with-dataframes.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/data-cleaning-with-dataframes.md
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diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/how-to-use-jupyter-notebooks-intro.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/how-to-use-jupyter-notebooks-intro.md
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diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/introduction-to-data-analysis.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/introduction-to-data-analysis.md
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diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/jupyter-notebooks-cells.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/jupyter-notebooks-cells.md
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diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/jupyter-notebooks-importing-and-exporting-data.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/jupyter-notebooks-importing-and-exporting-data.md
index e5b61adeb27..225058fe320 100644
--- a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/jupyter-notebooks-importing-and-exporting-data.md
+++ b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/jupyter-notebooks-importing-and-exporting-data.md
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diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/numpy-algebra-and-size.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/numpy-algebra-and-size.md
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diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/numpy-arrays.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/numpy-arrays.md
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diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/numpy-boolean-arrays.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/numpy-boolean-arrays.md
index a94b872d2bf..c77e3bcab87 100644
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diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/numpy-introduction-a.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/numpy-introduction-a.md
index d8e18b3c826..4466bd63033 100644
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diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/numpy-introduction-b.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/numpy-introduction-b.md
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diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/numpy-operations.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/numpy-operations.md
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+++ b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/numpy-operations.md
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diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/pandas-conditional-selection-and-modifying-dataframes.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/pandas-conditional-selection-and-modifying-dataframes.md
index cb399762ec4..634f41862af 100644
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+++ b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/pandas-conditional-selection-and-modifying-dataframes.md
@@ -1,7 +1,6 @@
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diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/pandas-creating-columns.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/pandas-creating-columns.md
index 3f07619ef57..e6e7fc56720 100644
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+++ b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/pandas-creating-columns.md
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diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/pandas-dataframes.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/pandas-dataframes.md
index e4cd448b253..234fe972e2e 100644
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diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/pandas-indexing-and-conditional-selection.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/pandas-indexing-and-conditional-selection.md
index c9c4728c83c..eccfa2c4e6f 100644
--- a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/pandas-indexing-and-conditional-selection.md
+++ b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/pandas-indexing-and-conditional-selection.md
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diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/pandas-introduction.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/pandas-introduction.md
index c8c90e9d84f..dd86103a380 100644
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@@ -1,7 +1,6 @@
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diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/parsing-html-and-saving-data.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/parsing-html-and-saving-data.md
index 05d5b3a6bcf..a850bcebdeb 100644
--- a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/parsing-html-and-saving-data.md
+++ b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/parsing-html-and-saving-data.md
@@ -1,7 +1,6 @@
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diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/python-functions-and-collections.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/python-functions-and-collections.md
index 123a35822a2..564256b0e83 100644
--- a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/python-functions-and-collections.md
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diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/python-introduction.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/python-introduction.md
index 5e33f55cea9..d71ca8e99da 100644
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diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/python-iteration-and-modules.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/python-iteration-and-modules.md
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@@ -1,7 +1,6 @@
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diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/reading-data-csv-and-txt.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/reading-data-csv-and-txt.md
index 2860f0825e2..e4616aa2d91 100644
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+++ b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/reading-data-csv-and-txt.md
@@ -1,7 +1,6 @@
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diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/reading-data-from-databases.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/reading-data-from-databases.md
index 7d8bf6b580b..d7768fd2807 100644
--- a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/reading-data-from-databases.md
+++ b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/reading-data-from-databases.md
@@ -1,7 +1,6 @@
 ---
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diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/reading-data-introduction.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/reading-data-introduction.md
index 7c3c9e9799c..8d275cb94cf 100644
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+++ b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-course/reading-data-introduction.md
@@ -1,7 +1,6 @@
 ---
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diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-projects/demographic-data-analyzer.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-projects/demographic-data-analyzer.md
index 2c7d9ed61e3..07249a7a412 100644
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+++ b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-projects/demographic-data-analyzer.md
@@ -1,7 +1,6 @@
 ---
 id: 5e46f7e5ac417301a38fb929
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 ---
 
 ## Description
diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-projects/mean-variance-standard-deviation-calculator.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-projects/mean-variance-standard-deviation-calculator.md
index c7b3ed8f0e1..dcd83b63041 100644
--- a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-projects/mean-variance-standard-deviation-calculator.md
+++ b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-projects/mean-variance-standard-deviation-calculator.md
@@ -1,7 +1,6 @@
 ---
 id: 5e46f7e5ac417301a38fb928
 challengeType: 10
-isHidden: false
 ---
 
 ## Description
diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-projects/medical-data-visualizer.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-projects/medical-data-visualizer.md
index 9e76b635922..93c034b1c88 100644
--- a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-projects/medical-data-visualizer.md
+++ b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-projects/medical-data-visualizer.md
@@ -1,7 +1,6 @@
 ---
 id: 5e46f7f8ac417301a38fb92a
 challengeType: 10
-isHidden: false
 ---
 
 ## Description
diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-projects/page-view-time-series-visualizer.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-projects/page-view-time-series-visualizer.md
index 66bea4047f0..f9f5f240de2 100644
--- a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-projects/page-view-time-series-visualizer.md
+++ b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-projects/page-view-time-series-visualizer.md
@@ -1,7 +1,6 @@
 ---
 id: 5e46f802ac417301a38fb92b
 challengeType: 10
-isHidden: false
 ---
 
 ## Description
diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-projects/sea-level-predictor.md b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-projects/sea-level-predictor.md
index ea4b650dcdb..d449fef3453 100644
--- a/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-projects/sea-level-predictor.md
+++ b/curriculum/challenges/chinese/08-data-analysis-with-python/data-analysis-with-python-projects/sea-level-predictor.md
@@ -1,7 +1,6 @@
 ---
 id: 5e4f5c4b570f7e3a4949899f
 challengeType: 10
-isHidden: false
 ---
 
 ## Description
diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/accessing-and-changing-elements,-rows,-columns.md b/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/accessing-and-changing-elements,-rows,-columns.md
index 3c2067d67a9..52f0e933132 100644
--- a/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/accessing-and-changing-elements,-rows,-columns.md
+++ b/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/accessing-and-changing-elements,-rows,-columns.md
@@ -1,7 +1,6 @@
 ---
 id: 5e9a0a8e09c5df3cc3600ed4
 challengeType: 11
-isHidden: false
 videoId: v-7Y7koJ_N0
 ---
 
diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/basics-of-numpy.md b/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/basics-of-numpy.md
index 6bfbf3e4342..7bd68fe9c57 100644
--- a/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/basics-of-numpy.md
+++ b/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/basics-of-numpy.md
@@ -1,7 +1,6 @@
 ---
 id: 5e9a0a8e09c5df3cc3600ed3
 challengeType: 11
-isHidden: false
 videoId: f9QrZrKQMLI
 ---
 
diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/copying-arrays-warning.md b/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/copying-arrays-warning.md
index 76380c3c42a..c8ef070dc55 100644
--- a/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/copying-arrays-warning.md
+++ b/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/copying-arrays-warning.md
@@ -1,7 +1,6 @@
 ---
 id: 5e9a0a8e09c5df3cc3600ed7
 challengeType: 11
-isHidden: false
 videoId: iIoQ0_L0GvA
 ---
 
diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/initialize-array-problem.md b/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/initialize-array-problem.md
index cfadf353c8d..3896884340f 100644
--- a/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/initialize-array-problem.md
+++ b/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/initialize-array-problem.md
@@ -1,7 +1,6 @@
 ---
 id: 5e9a0a8e09c5df3cc3600ed6
 challengeType: 11
-isHidden: false
 videoId: 0jGfH8BPfOk
 ---
 
diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/initializing-different-arrays.md b/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/initializing-different-arrays.md
index 3ceb3ccd075..125c2f62e39 100644
--- a/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/initializing-different-arrays.md
+++ b/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/initializing-different-arrays.md
@@ -1,7 +1,6 @@
 ---
 id: 5e9a0a8e09c5df3cc3600ed5
 challengeType: 11
-isHidden: false
 videoId: CEykdsKT4U4
 ---
 
diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/loading-data-and-advanced-indexing.md b/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/loading-data-and-advanced-indexing.md
index 3a53db51d8f..862a974325c 100644
--- a/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/loading-data-and-advanced-indexing.md
+++ b/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/loading-data-and-advanced-indexing.md
@@ -1,7 +1,6 @@
 ---
 id: 5e9a0a8e09c5df3cc3600eda
 challengeType: 11
-isHidden: false
 videoId: tUdBZ7pF8Jg
 ---
 
diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/mathematics.md b/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/mathematics.md
index 0f9c5947b5f..26757e8f54c 100644
--- a/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/mathematics.md
+++ b/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/mathematics.md
@@ -1,7 +1,6 @@
 ---
 id: 5e9a0a8e09c5df3cc3600ed8
 challengeType: 11
-isHidden: false
 videoId: 7txegvyhtVk
 ---
 
diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/reorganizing-arrays.md b/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/reorganizing-arrays.md
index 48ef589f2df..e2f237356ae 100644
--- a/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/reorganizing-arrays.md
+++ b/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/reorganizing-arrays.md
@@ -1,7 +1,6 @@
 ---
 id: 5e9a0a8e09c5df3cc3600ed9
 challengeType: 11
-isHidden: false
 videoId: VNWAQbEM-C8
 ---
 
diff --git a/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/what-is-numpy.md b/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/what-is-numpy.md
index 85d49fbc6b2..ca463651d5e 100644
--- a/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/what-is-numpy.md
+++ b/curriculum/challenges/chinese/08-data-analysis-with-python/numpy/what-is-numpy.md
@@ -1,7 +1,6 @@
 ---
 id: 5e9a0a8e09c5df3cc3600ed2
 challengeType: 11
-isHidden: false
 videoId: 5Nwfs5Ej85Q
 ---
 
diff --git a/curriculum/challenges/chinese/09-information-security/information-security-projects/port-scanner.md b/curriculum/challenges/chinese/09-information-security/information-security-projects/port-scanner.md
index 4c0344bb4b3..fa2287916f1 100644
--- a/curriculum/challenges/chinese/09-information-security/information-security-projects/port-scanner.md
+++ b/curriculum/challenges/chinese/09-information-security/information-security-projects/port-scanner.md
@@ -1,7 +1,6 @@
 ---
 id: 5e46f979ac417301a38fb932
 challengeType: 10
-isHidden: false
 ---
 
 ## Description
diff --git a/curriculum/challenges/chinese/09-information-security/information-security-projects/secure-real-time-multiplayer-game.md b/curriculum/challenges/chinese/09-information-security/information-security-projects/secure-real-time-multiplayer-game.md
index 60ebd897b83..1440c2edb8a 100644
--- a/curriculum/challenges/chinese/09-information-security/information-security-projects/secure-real-time-multiplayer-game.md
+++ b/curriculum/challenges/chinese/09-information-security/information-security-projects/secure-real-time-multiplayer-game.md
@@ -1,7 +1,6 @@
 ---
 id: 5e601c775ac9d0ecd8b94aff
 challengeType: 4
-isHidden: false
 ---
 
 ## Description
diff --git a/curriculum/challenges/chinese/09-information-security/information-security-projects/sha-1-password-cracker.md b/curriculum/challenges/chinese/09-information-security/information-security-projects/sha-1-password-cracker.md
index bb89fce243c..1167901cd97 100644
--- a/curriculum/challenges/chinese/09-information-security/information-security-projects/sha-1-password-cracker.md
+++ b/curriculum/challenges/chinese/09-information-security/information-security-projects/sha-1-password-cracker.md
@@ -1,7 +1,6 @@
 ---
 id: 5e46f983ac417301a38fb933
 challengeType: 10
-isHidden: false
 ---
 
 ## Description
diff --git a/curriculum/challenges/chinese/09-information-security/python-for-penetration-testing/creating-a-tcp-client.md b/curriculum/challenges/chinese/09-information-security/python-for-penetration-testing/creating-a-tcp-client.md
index 45035962ac8..b7f152040e2 100644
--- a/curriculum/challenges/chinese/09-information-security/python-for-penetration-testing/creating-a-tcp-client.md
+++ b/curriculum/challenges/chinese/09-information-security/python-for-penetration-testing/creating-a-tcp-client.md
@@ -1,7 +1,6 @@
 ---
 id: 5ea9997bbec2e9bc47e94db0
 challengeType: 11
-isHidden: false
 videoId: ugYfJNTawks
 ---
 
diff --git a/curriculum/challenges/chinese/09-information-security/python-for-penetration-testing/developing-a-banner-grabber.md b/curriculum/challenges/chinese/09-information-security/python-for-penetration-testing/developing-a-banner-grabber.md
index fdeaf2ab0fa..d5390cee67c 100644
--- a/curriculum/challenges/chinese/09-information-security/python-for-penetration-testing/developing-a-banner-grabber.md
+++ b/curriculum/challenges/chinese/09-information-security/python-for-penetration-testing/developing-a-banner-grabber.md
@@ -1,7 +1,6 @@
 ---
 id: 5ea9997bbec2e9bc47e94db3
 challengeType: 11
-isHidden: false
 videoId: CeGW761BIsA
 ---
 
diff --git a/curriculum/challenges/chinese/09-information-security/python-for-penetration-testing/developing-a-port-scanner.md b/curriculum/challenges/chinese/09-information-security/python-for-penetration-testing/developing-a-port-scanner.md
index 260008abd01..75eb55f3400 100644
--- a/curriculum/challenges/chinese/09-information-security/python-for-penetration-testing/developing-a-port-scanner.md
+++ b/curriculum/challenges/chinese/09-information-security/python-for-penetration-testing/developing-a-port-scanner.md
@@ -1,7 +1,6 @@
 ---
 id: 5ea9997bbec2e9bc47e94db4
 challengeType: 11
-isHidden: false
 videoId: z_qkqZS7KZ4
 ---
 
diff --git a/curriculum/challenges/chinese/09-information-security/python-for-penetration-testing/developing-an-nmap-scanner-part-1.md b/curriculum/challenges/chinese/09-information-security/python-for-penetration-testing/developing-an-nmap-scanner-part-1.md
index 7326f824a71..be5dd6c9c8c 100644
--- a/curriculum/challenges/chinese/09-information-security/python-for-penetration-testing/developing-an-nmap-scanner-part-1.md
+++ b/curriculum/challenges/chinese/09-information-security/python-for-penetration-testing/developing-an-nmap-scanner-part-1.md
@@ -1,7 +1,6 @@
 ---
 id: 5ea9997bbec2e9bc47e94db1
 challengeType: 11
-isHidden: false
 videoId: jYk9XaGoAnk
 ---
 
diff --git a/curriculum/challenges/chinese/09-information-security/python-for-penetration-testing/developing-an-nmap-scanner-part-2.md b/curriculum/challenges/chinese/09-information-security/python-for-penetration-testing/developing-an-nmap-scanner-part-2.md
index 91bbfd014e7..ed271678607 100644
--- a/curriculum/challenges/chinese/09-information-security/python-for-penetration-testing/developing-an-nmap-scanner-part-2.md
+++ b/curriculum/challenges/chinese/09-information-security/python-for-penetration-testing/developing-an-nmap-scanner-part-2.md
@@ -1,7 +1,6 @@
 ---
 id: 5ea9997bbec2e9bc47e94db2
 challengeType: 11
-isHidden: false
 videoId: a98PscnUsTg
 ---
 
diff --git a/curriculum/challenges/chinese/09-information-security/python-for-penetration-testing/introduction-and-setup.md b/curriculum/challenges/chinese/09-information-security/python-for-penetration-testing/introduction-and-setup.md
index 19aa72308be..73478c2c044 100644
--- a/curriculum/challenges/chinese/09-information-security/python-for-penetration-testing/introduction-and-setup.md
+++ b/curriculum/challenges/chinese/09-information-security/python-for-penetration-testing/introduction-and-setup.md
@@ -1,7 +1,6 @@
 ---
 id: 5ea9997bbec2e9bc47e94dae
 challengeType: 11
-isHidden: false
 videoId: XeQ7ZKtb998
 ---
 
diff --git a/curriculum/challenges/chinese/09-information-security/python-for-penetration-testing/understanding-sockets-and-creating-a-tcp-server.md b/curriculum/challenges/chinese/09-information-security/python-for-penetration-testing/understanding-sockets-and-creating-a-tcp-server.md
index c0ef0d2fba7..209455a4e21 100644
--- a/curriculum/challenges/chinese/09-information-security/python-for-penetration-testing/understanding-sockets-and-creating-a-tcp-server.md
+++ b/curriculum/challenges/chinese/09-information-security/python-for-penetration-testing/understanding-sockets-and-creating-a-tcp-server.md
@@ -1,7 +1,6 @@
 ---
 id: 5ea9997bbec2e9bc47e94daf
 challengeType: 11
-isHidden: false
 videoId: F1QI9tNuDQg
 ---
 
diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/how-neural-networks-work/deep-learning-demystified.md b/curriculum/challenges/chinese/11-machine-learning-with-python/how-neural-networks-work/deep-learning-demystified.md
index 0f4309bd5c1..96319f50913 100644
--- a/curriculum/challenges/chinese/11-machine-learning-with-python/how-neural-networks-work/deep-learning-demystified.md
+++ b/curriculum/challenges/chinese/11-machine-learning-with-python/how-neural-networks-work/deep-learning-demystified.md
@@ -1,7 +1,6 @@
 ---
 id: 5e9a0e9ef99a403d019610cc
 challengeType: 11
-isHidden: false
 videoId: bejQ-W9BGJg
 ---
 
diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/how-neural-networks-work/how-convolutional-neural-networks-work.md b/curriculum/challenges/chinese/11-machine-learning-with-python/how-neural-networks-work/how-convolutional-neural-networks-work.md
index 019ec4f5bb2..4729b9bbf6b 100644
--- a/curriculum/challenges/chinese/11-machine-learning-with-python/how-neural-networks-work/how-convolutional-neural-networks-work.md
+++ b/curriculum/challenges/chinese/11-machine-learning-with-python/how-neural-networks-work/how-convolutional-neural-networks-work.md
@@ -1,7 +1,6 @@
 ---
 id: 5e9a0e9ef99a403d019610cd
 challengeType: 11
-isHidden: false
 videoId: Y5M7KH4A4n4
 ---
 
diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/how-neural-networks-work/how-deep-neural-networks-work.md b/curriculum/challenges/chinese/11-machine-learning-with-python/how-neural-networks-work/how-deep-neural-networks-work.md
index 19c056354d8..7419e6a64ad 100644
--- a/curriculum/challenges/chinese/11-machine-learning-with-python/how-neural-networks-work/how-deep-neural-networks-work.md
+++ b/curriculum/challenges/chinese/11-machine-learning-with-python/how-neural-networks-work/how-deep-neural-networks-work.md
@@ -1,7 +1,6 @@
 ---
 id: 5e9a0e9ef99a403d019610ca
 challengeType: 11
-isHidden: false
 videoId: zvalnHWGtx4
 ---
 
diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/how-neural-networks-work/recurrent-neural-networks-rnn-and-long-short-term-memory-lstm.md b/curriculum/challenges/chinese/11-machine-learning-with-python/how-neural-networks-work/recurrent-neural-networks-rnn-and-long-short-term-memory-lstm.md
index 8f419f81ca6..ec22e89eee8 100644
--- a/curriculum/challenges/chinese/11-machine-learning-with-python/how-neural-networks-work/recurrent-neural-networks-rnn-and-long-short-term-memory-lstm.md
+++ b/curriculum/challenges/chinese/11-machine-learning-with-python/how-neural-networks-work/recurrent-neural-networks-rnn-and-long-short-term-memory-lstm.md
@@ -1,7 +1,6 @@
 ---
 id: 5e9a0e9ef99a403d019610cb
 challengeType: 11
-isHidden: false
 videoId: UVimlsy9eW0
 ---
 
diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/machine-learning-with-python-projects/book-recommendation-engine-using-knn.md b/curriculum/challenges/chinese/11-machine-learning-with-python/machine-learning-with-python-projects/book-recommendation-engine-using-knn.md
index 172b17e3304..a7f9edecaf6 100644
--- a/curriculum/challenges/chinese/11-machine-learning-with-python/machine-learning-with-python-projects/book-recommendation-engine-using-knn.md
+++ b/curriculum/challenges/chinese/11-machine-learning-with-python/machine-learning-with-python-projects/book-recommendation-engine-using-knn.md
@@ -1,7 +1,6 @@
 ---
 id: 5e46f8e3ac417301a38fb92f
 challengeType: 10
-isHidden: false
 ---
 
 ## Description
diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/machine-learning-with-python-projects/cat-and-dog-image-classifier.md b/curriculum/challenges/chinese/11-machine-learning-with-python/machine-learning-with-python-projects/cat-and-dog-image-classifier.md
index 8124ef3a8b8..7a52c4ec9b1 100644
--- a/curriculum/challenges/chinese/11-machine-learning-with-python/machine-learning-with-python-projects/cat-and-dog-image-classifier.md
+++ b/curriculum/challenges/chinese/11-machine-learning-with-python/machine-learning-with-python-projects/cat-and-dog-image-classifier.md
@@ -1,7 +1,6 @@
 ---
 id: 5e46f8dcac417301a38fb92e
 challengeType: 10
-isHidden: false
 ---
 
 ## Description
diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/machine-learning-with-python-projects/linear-regression-health-costs-calculator.md b/curriculum/challenges/chinese/11-machine-learning-with-python/machine-learning-with-python-projects/linear-regression-health-costs-calculator.md
index ace2fd49389..d8c3e9172ab 100644
--- a/curriculum/challenges/chinese/11-machine-learning-with-python/machine-learning-with-python-projects/linear-regression-health-costs-calculator.md
+++ b/curriculum/challenges/chinese/11-machine-learning-with-python/machine-learning-with-python-projects/linear-regression-health-costs-calculator.md
@@ -1,7 +1,6 @@
 ---
 id: 5e46f8edac417301a38fb930
 challengeType: 10
-isHidden: false
 ---
 
 ## Description
diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/machine-learning-with-python-projects/neural-network-sms-text-classifier.md b/curriculum/challenges/chinese/11-machine-learning-with-python/machine-learning-with-python-projects/neural-network-sms-text-classifier.md
index 6f8d88432d7..f0ff0869860 100644
--- a/curriculum/challenges/chinese/11-machine-learning-with-python/machine-learning-with-python-projects/neural-network-sms-text-classifier.md
+++ b/curriculum/challenges/chinese/11-machine-learning-with-python/machine-learning-with-python-projects/neural-network-sms-text-classifier.md
@@ -1,7 +1,6 @@
 ---
 id: 5e46f8edac417301a38fb931
 challengeType: 10
-isHidden: false
 ---
 
 ## Description
diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/machine-learning-with-python-projects/rock-paper-scissors.md b/curriculum/challenges/chinese/11-machine-learning-with-python/machine-learning-with-python-projects/rock-paper-scissors.md
index 70f3c92be0b..8abada0f0f5 100644
--- a/curriculum/challenges/chinese/11-machine-learning-with-python/machine-learning-with-python-projects/rock-paper-scissors.md
+++ b/curriculum/challenges/chinese/11-machine-learning-with-python/machine-learning-with-python-projects/rock-paper-scissors.md
@@ -1,7 +1,6 @@
 ---
 id: 5e46f8d6ac417301a38fb92d
 challengeType: 10
-isHidden: false
 ---
 
 ## Description
diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/conclusion.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/conclusion.md
index 39ab6429830..e8ca3b19496 100644
--- a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/conclusion.md
+++ b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/conclusion.md
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diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/convolutional-neural-networks-evaluating-the-model.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/convolutional-neural-networks-evaluating-the-model.md
index 0ffe9e2047e..35dd123b763 100644
--- a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/convolutional-neural-networks-evaluating-the-model.md
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diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/convolutional-neural-networks-picking-a-pretrained-model.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/convolutional-neural-networks-picking-a-pretrained-model.md
index 5a6879cad32..d5366db3b72 100644
--- a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/convolutional-neural-networks-picking-a-pretrained-model.md
+++ b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/convolutional-neural-networks-picking-a-pretrained-model.md
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diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/convolutional-neural-networks-the-convolutional-layer.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/convolutional-neural-networks-the-convolutional-layer.md
index d0e6393ded3..d735f1fd5c5 100644
--- a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/convolutional-neural-networks-the-convolutional-layer.md
+++ b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/convolutional-neural-networks-the-convolutional-layer.md
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diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/convolutional-neural-networks.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/convolutional-neural-networks.md
index 4139fe5c226..51619126f73 100644
--- a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/convolutional-neural-networks.md
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diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/core-learning-algorithms-building-the-model.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/core-learning-algorithms-building-the-model.md
index 14085ade1af..b8c2b827a9b 100644
--- a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/core-learning-algorithms-building-the-model.md
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diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/core-learning-algorithms-classification.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/core-learning-algorithms-classification.md
index 66602cb7a43..69882b10d7c 100644
--- a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/core-learning-algorithms-classification.md
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diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/core-learning-algorithms-clustering.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/core-learning-algorithms-clustering.md
index c82a8d407dd..183baae552c 100644
--- a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/core-learning-algorithms-clustering.md
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diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/core-learning-algorithms-hidden-markov-models.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/core-learning-algorithms-hidden-markov-models.md
index e466d63e251..625ff089f24 100644
--- a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/core-learning-algorithms-hidden-markov-models.md
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diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/core-learning-algorithms-the-training-process.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/core-learning-algorithms-the-training-process.md
index ed9691593c5..87eee0c676d 100644
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diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/core-learning-algorithms-training-and-testing-data.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/core-learning-algorithms-training-and-testing-data.md
index 1b0073b2c62..3f151b03fd5 100644
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diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/core-learning-algorithms-using-probabilities-to-make-predictions.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/core-learning-algorithms-using-probabilities-to-make-predictions.md
index 71c14d60f73..ac33bb5bcc8 100644
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diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/core-learning-algorithms-working-with-data.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/core-learning-algorithms-working-with-data.md
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diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/core-learning-algorithms.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/core-learning-algorithms.md
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diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/creating-a-convolutional-neural-network.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/creating-a-convolutional-neural-network.md
index a653062eb0f..b7b7170e598 100644
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diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/introduction-machine-learning-fundamentals.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/introduction-machine-learning-fundamentals.md
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--- a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/introduction-machine-learning-fundamentals.md
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diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/introduction-to-tensorflow.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/introduction-to-tensorflow.md
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diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/natural-language-processing-with-rnns-building-the-model.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/natural-language-processing-with-rnns-building-the-model.md
index 24a2463680c..56e58ac4cd4 100644
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diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/natural-language-processing-with-rnns-create-a-play-generator.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/natural-language-processing-with-rnns-create-a-play-generator.md
index 5151826beb4..8b1cf47d1cb 100644
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diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/natural-language-processing-with-rnns-making-predictions.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/natural-language-processing-with-rnns-making-predictions.md
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diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/natural-language-processing-with-rnns-part-2.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/natural-language-processing-with-rnns-part-2.md
index 77a82a93afb..8a84c6e1495 100644
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diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/natural-language-processing-with-rnns-recurring-neural-networks.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/natural-language-processing-with-rnns-recurring-neural-networks.md
index 76b00254415..40941c08f0d 100644
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diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/natural-language-processing-with-rnns-sentimental-analysis.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/natural-language-processing-with-rnns-sentimental-analysis.md
index 06085e619b1..735bac1c095 100644
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diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/natural-language-processing-with-rnns-training-the-model.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/natural-language-processing-with-rnns-training-the-model.md
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diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/natural-language-processing-with-rnns.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/natural-language-processing-with-rnns.md
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diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/neural-networks-activation-functions.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/neural-networks-activation-functions.md
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diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/neural-networks-creating-a-model.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/neural-networks-creating-a-model.md
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diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/neural-networks-optimizers.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/neural-networks-optimizers.md
index ceb5335a7a3..b91d0cd6e94 100644
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diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/neural-networks-with-tensorflow.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/neural-networks-with-tensorflow.md
index b7146d7f180..acb16a028f4 100644
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diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/reinforcement-learning-with-q-learning-example.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/reinforcement-learning-with-q-learning-example.md
index 362df97d270..605f73a2f32 100644
--- a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/reinforcement-learning-with-q-learning-example.md
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diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/reinforcement-learning-with-q-learning-part-2.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/reinforcement-learning-with-q-learning-part-2.md
index fceb83940df..7fc65b5e107 100644
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diff --git a/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/reinforcement-learning-with-q-learning.md b/curriculum/challenges/chinese/11-machine-learning-with-python/tensorflow/reinforcement-learning-with-q-learning.md
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diff --git a/curriculum/challenges/chinese/12-certificates/apis-and-microservices-certificate/apis-and-microservices-certificate.md b/curriculum/challenges/chinese/12-certificates/apis-and-microservices-certificate/apis-and-microservices-certificate.md
index db954a777b3..801577063d8 100644
--- a/curriculum/challenges/chinese/12-certificates/apis-and-microservices-certificate/apis-and-microservices-certificate.md
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diff --git a/curriculum/challenges/chinese/12-certificates/data-analysis-with-python-certificate/data-analysis-with-python-certificate.md b/curriculum/challenges/chinese/12-certificates/data-analysis-with-python-certificate/data-analysis-with-python-certificate.md
index 3f056e59f7a..996e60d9aad 100644
--- a/curriculum/challenges/chinese/12-certificates/data-analysis-with-python-certificate/data-analysis-with-python-certificate.md
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diff --git a/curriculum/challenges/chinese/12-certificates/data-visualization-certificate/data-visualization-certificate.md b/curriculum/challenges/chinese/12-certificates/data-visualization-certificate/data-visualization-certificate.md
index 23652a8f172..fd728a4df28 100644
--- a/curriculum/challenges/chinese/12-certificates/data-visualization-certificate/data-visualization-certificate.md
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diff --git a/curriculum/challenges/chinese/12-certificates/front-end-libraries-certificate/front-end-libraries-certificate.md b/curriculum/challenges/chinese/12-certificates/front-end-libraries-certificate/front-end-libraries-certificate.md
index d1337ba2cad..6c6a0c30368 100644
--- a/curriculum/challenges/chinese/12-certificates/front-end-libraries-certificate/front-end-libraries-certificate.md
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diff --git a/curriculum/challenges/chinese/12-certificates/information-security-certificate/information-security-certificate.md b/curriculum/challenges/chinese/12-certificates/information-security-certificate/information-security-certificate.md
index ca432551ec7..6a2b82a735d 100644
--- a/curriculum/challenges/chinese/12-certificates/information-security-certificate/information-security-certificate.md
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diff --git a/curriculum/challenges/chinese/12-certificates/javascript-algorithms-and-data-structures-certificate/javascript-algorithms-and-data-structures-certificate.md b/curriculum/challenges/chinese/12-certificates/javascript-algorithms-and-data-structures-certificate/javascript-algorithms-and-data-structures-certificate.md
index 9f53861c5a9..7d5046ff378 100644
--- a/curriculum/challenges/chinese/12-certificates/javascript-algorithms-and-data-structures-certificate/javascript-algorithms-and-data-structures-certificate.md
+++ b/curriculum/challenges/chinese/12-certificates/javascript-algorithms-and-data-structures-certificate/javascript-algorithms-and-data-structures-certificate.md
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diff --git a/curriculum/challenges/chinese/12-certificates/legacy-back-end-certificate/legacy-back-end-certificate.md b/curriculum/challenges/chinese/12-certificates/legacy-back-end-certificate/legacy-back-end-certificate.md
index 24cbe09ff13..20235b31cac 100644
--- a/curriculum/challenges/chinese/12-certificates/legacy-back-end-certificate/legacy-back-end-certificate.md
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diff --git a/curriculum/challenges/chinese/12-certificates/legacy-data-visualization-certificate/legacy-data-visualization-certificate.md b/curriculum/challenges/chinese/12-certificates/legacy-data-visualization-certificate/legacy-data-visualization-certificate.md
index 323ff84f438..dd040b0160e 100644
--- a/curriculum/challenges/chinese/12-certificates/legacy-data-visualization-certificate/legacy-data-visualization-certificate.md
+++ b/curriculum/challenges/chinese/12-certificates/legacy-data-visualization-certificate/legacy-data-visualization-certificate.md
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diff --git a/curriculum/challenges/chinese/12-certificates/legacy-front-end-certificate/legacy-front-end-certificate.md b/curriculum/challenges/chinese/12-certificates/legacy-front-end-certificate/legacy-front-end-certificate.md
index 0742d90fcfe..83598a605fb 100644
--- a/curriculum/challenges/chinese/12-certificates/legacy-front-end-certificate/legacy-front-end-certificate.md
+++ b/curriculum/challenges/chinese/12-certificates/legacy-front-end-certificate/legacy-front-end-certificate.md
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diff --git a/curriculum/challenges/chinese/12-certificates/legacy-full-stack-certificate/legacy-full-stack-certificate.md b/curriculum/challenges/chinese/12-certificates/legacy-full-stack-certificate/legacy-full-stack-certificate.md
index 83a2e00e884..a3be1a12a4d 100644
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diff --git a/curriculum/challenges/chinese/12-certificates/legacy-information-security-and-quality-assurance-certificate/legacy-information-security-and-quality-assurance-certificate.md b/curriculum/challenges/chinese/12-certificates/legacy-information-security-and-quality-assurance-certificate/legacy-information-security-and-quality-assurance-certificate.md
index 28552dfa3e1..8bb7b2c97f2 100644
--- a/curriculum/challenges/chinese/12-certificates/legacy-information-security-and-quality-assurance-certificate/legacy-information-security-and-quality-assurance-certificate.md
+++ b/curriculum/challenges/chinese/12-certificates/legacy-information-security-and-quality-assurance-certificate/legacy-information-security-and-quality-assurance-certificate.md
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diff --git a/curriculum/challenges/chinese/12-certificates/machine-learning-with-python-certificate/machine-learning-with-python-certificate.md b/curriculum/challenges/chinese/12-certificates/machine-learning-with-python-certificate/machine-learning-with-python-certificate.md
index 460fb7d87b1..d3535151cdb 100644
--- a/curriculum/challenges/chinese/12-certificates/machine-learning-with-python-certificate/machine-learning-with-python-certificate.md
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diff --git a/curriculum/challenges/chinese/12-certificates/quality-assurance-certificate/quality-assurance-certificate.md b/curriculum/challenges/chinese/12-certificates/quality-assurance-certificate/quality-assurance-certificate.md
index 7f7f7fc9499..302a11e1034 100644
--- a/curriculum/challenges/chinese/12-certificates/quality-assurance-certificate/quality-assurance-certificate.md
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diff --git a/curriculum/challenges/chinese/12-certificates/responsive-web-design-certificate/responsive-web-design-certificate.md b/curriculum/challenges/chinese/12-certificates/responsive-web-design-certificate/responsive-web-design-certificate.md
index 50486250a63..fb9a60f6753 100644
--- a/curriculum/challenges/chinese/12-certificates/responsive-web-design-certificate/responsive-web-design-certificate.md
+++ b/curriculum/challenges/chinese/12-certificates/responsive-web-design-certificate/responsive-web-design-certificate.md
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 title: 响应式网页设计证书
 ---
diff --git a/curriculum/challenges/chinese/12-certificates/scientific-computing-with-python-certificate/scientific-computing-with-python-certificate.md b/curriculum/challenges/chinese/12-certificates/scientific-computing-with-python-certificate/scientific-computing-with-python-certificate.md
index 13eef90b74a..91e964dcdf1 100644
--- a/curriculum/challenges/chinese/12-certificates/scientific-computing-with-python-certificate/scientific-computing-with-python-certificate.md
+++ b/curriculum/challenges/chinese/12-certificates/scientific-computing-with-python-certificate/scientific-computing-with-python-certificate.md
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 ---
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-001.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-001.md
index 639d73e1214..657bea94ce2 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-001.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-001.md
@@ -2,7 +2,6 @@
 id: 5f33071498eb2472b87ddee4
 title: Part 1
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-002.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-002.md
index 785f3ee81e9..32e1a555f39 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-002.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-002.md
@@ -2,7 +2,6 @@
 id: 5f3313e74582ad9d063e3a38
 title: Part 2
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-003.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-003.md
index 6648f5654d3..3c236ded9b1 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-003.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-003.md
@@ -2,7 +2,6 @@
 id: 5f331e55dfab7a896e53c3a1
 title: Part 3
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-004.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-004.md
index 9daf47d0a2d..f469b08bce3 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-004.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-004.md
@@ -2,7 +2,6 @@
 id: 5f3326b143638ee1a09ff1e3
 title: Part 4
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-005.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-005.md
index b968ce777ed..ca85234c23e 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-005.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-005.md
@@ -2,7 +2,6 @@
 id: 5f33294a6af5e9188dbdb8f3
 title: Part 5
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-006.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-006.md
index 84bab5b8d14..f305e33b772 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-006.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-006.md
@@ -2,7 +2,6 @@
 id: 5f332a88dc25a0fd25c7687a
 title: Part 6
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-007.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-007.md
index 4e161454878..5cf2cbf7b0c 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-007.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-007.md
@@ -2,7 +2,6 @@
 id: 5f332b23c2045fb843337579
 title: Part 7
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-008.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-008.md
index 2054aff423a..3f2197778e1 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-008.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-008.md
@@ -2,7 +2,6 @@
 id: 5f33310c1851c6c4da013250
 title: Part 8
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-009.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-009.md
index 231240b4289..31ba00ef205 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-009.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-009.md
@@ -2,7 +2,6 @@
 id: 5f344fc1520b6719f2e35605
 title: Part 9
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-010.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-010.md
index 3af929cdde4..d35352de2a7 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-010.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-010.md
@@ -2,7 +2,6 @@
 id: 5f344fbc22624a2976425065
 title: Part 10
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-011.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-011.md
index 355930f9be3..fb2d17c1367 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-011.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-011.md
@@ -2,7 +2,6 @@
 id: 5f344fad8bf01691e71a30eb
 title: Part 11
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-012.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-012.md
index 4c7fd6ca0ac..61e4bbfac62 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-012.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-012.md
@@ -2,7 +2,6 @@
 id: 5f344f9c805cd193c33d829c
 title: Part 12
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-013.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-013.md
index 6d66bc6b410..bc05783b277 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-013.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-013.md
@@ -2,7 +2,6 @@
 id: 5f3477ae9675db8bb7655b30
 title: Part 13
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-014.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-014.md
index 136a487eb73..e1f30b8e0f4 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-014.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-014.md
@@ -2,7 +2,6 @@
 id: 5f3477ae34c1239cafe128be
 title: Part 14
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-015.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-015.md
index 78adb885791..1cbdeab0180 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-015.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-015.md
@@ -2,7 +2,6 @@
 id: 5f3477aefa51bfc29327200b
 title: Part 15
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-016.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-016.md
index 3edf50816d8..44f2fc4cb08 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-016.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-016.md
@@ -2,7 +2,6 @@
 id: 5f3477ae8466a9a3d2cc953c
 title: Part 16
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-017.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-017.md
index b43184ce4d7..707b853d065 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-017.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-017.md
@@ -2,7 +2,6 @@
 id: 5f3477cb2e27333b1ab2b955
 title: Part 17
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-018.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-018.md
index efe6469c954..72bc1ce3f21 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-018.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-018.md
@@ -2,7 +2,6 @@
 id: 5f3477cbcb6ba47918c1da92
 title: Part 18
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-019.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-019.md
index 5e73693a95c..b696a69c9b5 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-019.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-019.md
@@ -2,7 +2,6 @@
 id: 5f3477cb303c5cb61b43aa9b
 title: Part 19
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-020.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-020.md
index 554a92d98c5..acab72efaee 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-020.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-020.md
@@ -2,7 +2,6 @@
 id: 5f34a1fd611d003edeafd681
 title: Part 20
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-021.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-021.md
index 4313ae78082..b4d4779482f 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-021.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-021.md
@@ -2,7 +2,6 @@
 id: 5f356ed6cf6eab5f15f5cfe6
 title: Part 21
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-022.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-022.md
index a216b7bfd1b..13907864cc8 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-022.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-022.md
@@ -2,7 +2,6 @@
 id: 5f356ed63c7807a4f1e6d054
 title: Part 22
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-023.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-023.md
index 14c0c436769..9c208529273 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-023.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-023.md
@@ -2,7 +2,6 @@
 id: 5f356ed60a5decd94ab66986
 title: Part 23
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-024.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-024.md
index 815b0dc30e7..024fc6a3d7a 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-024.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-024.md
@@ -2,7 +2,6 @@
 id: 5f356ed63e0fa262326eef05
 title: Part 24
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-025.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-025.md
index a64b47d3ad9..254f69fa585 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-025.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-025.md
@@ -2,7 +2,6 @@
 id: 5f356ed60785e1f3e9850b6e
 title: Part 25
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-026.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-026.md
index a17626a76f2..b72a003bc7c 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-026.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-026.md
@@ -2,7 +2,6 @@
 id: 5f356ed656a336993abd9f7c
 title: Part 26
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-027.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-027.md
index d5d98a0a2bb..b115f5a58ff 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-027.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-027.md
@@ -2,7 +2,6 @@
 id: 5f356ed6199b0cdef1d2be8f
 title: Part 27
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-028.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-028.md
index d1166a7578b..5a3c3779dfc 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-028.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-028.md
@@ -2,7 +2,6 @@
 id: 5f356ed69db0a491745e2bb6
 title: Part 28
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-029.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-029.md
index 0529f9e2387..413dbc2f8bc 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-029.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-029.md
@@ -2,7 +2,6 @@
 id: 5f35e5c44359872a137bd98f
 title: Part 29
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-030.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-030.md
index 99708de46f5..f8f6da60de4 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-030.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-030.md
@@ -2,7 +2,6 @@
 id: 5f35e5c4321f818cdc4bed30
 title: Part 30
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-031.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-031.md
index 32759928fe6..49462b0731f 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-031.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-031.md
@@ -2,7 +2,6 @@
 id: 5f3c866daec9a49519871816
 title: Part 31
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-032.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-032.md
index bf6d1d52acb..3e0ab9d8958 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-032.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-032.md
@@ -2,7 +2,6 @@
 id: 5f3c866d5414453fc2d7b480
 title: Part 32
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-033.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-033.md
index ed29f8d05d8..a08bc29cb3e 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-033.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-033.md
@@ -2,7 +2,6 @@
 id: 5f3c866d28d7ad0de6470505
 title: Part 33
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-034.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-034.md
index f092057a360..48af194bed3 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-034.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-034.md
@@ -2,7 +2,6 @@
 id: 5f3c866d697fb245bc801648
 title: Part 34
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-035.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-035.md
index db67d493217..20c2f817404 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-035.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-035.md
@@ -2,7 +2,6 @@
 id: 5f3c866de7a5b784048f94b1
 title: Part 35
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-036.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-036.md
index a2bae290111..25e75c31462 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-036.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-036.md
@@ -2,7 +2,6 @@
 id: 5f3c866dbf362f99b9a0c6d0
 title: Part 36
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-037.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-037.md
index 2675c68cf57..c135fe62a94 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-037.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-037.md
@@ -2,7 +2,6 @@
 id: 5f3c866d0fc037f7311b4ac8
 title: Part 37
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-038.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-038.md
index bfca4552584..6982090f61d 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-038.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-038.md
@@ -2,7 +2,6 @@
 id: 5f3c866dd0d0275f01d4d847
 title: Part 38
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-039.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-039.md
index 355f1e9cd28..c8614665bb1 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-039.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-039.md
@@ -2,7 +2,6 @@
 id: 5f3cade9fa77275d9f4efe62
 title: Part 39
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-040.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-040.md
index 95bf07bf73a..c0cb2a57c13 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-040.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-040.md
@@ -2,7 +2,6 @@
 id: 5f3cade94c6576e7f7b7953f
 title: Part 40
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-041.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-041.md
index 1a17c333388..30dab21e619 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-041.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-041.md
@@ -2,7 +2,6 @@
 id: 5f3cade9993019e26313fa8e
 title: Part 41
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-042.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-042.md
index 54dbbf52218..65c7e975b53 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-042.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-042.md
@@ -2,7 +2,6 @@
 id: 5f47633757ae3469f2d33d2e
 title: Part 42
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-043.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-043.md
index 6ab23af689b..fbb8fab72db 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-043.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-043.md
@@ -2,7 +2,6 @@
 id: 5f3cade99dda4e6071a85dfd
 title: Part 43
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-044.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-044.md
index ea01d653b22..a2b15acb81c 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-044.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-044.md
@@ -2,7 +2,6 @@
 id: 5f3ef6e0e0c3feaebcf647ad
 title: Part 44
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-045.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-045.md
index 5c625486678..fde611280d8 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-045.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-045.md
@@ -2,7 +2,6 @@
 id: 5f3ef6e0819d4f23ca7285e6
 title: Part 45
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-046.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-046.md
index f2bff0ad11b..588b6731520 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-046.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-046.md
@@ -2,7 +2,6 @@
 id: 5f3ef6e0835da6ccc3ee9958
 title: Part 46
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-047.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-047.md
index 80c5d9c6b33..f9ba84d9ad2 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-047.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-047.md
@@ -2,7 +2,6 @@
 id: 5f3ef6e0086dc80481f8cb03
 title: Part 47
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-048.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-048.md
index 515d1bd3468..9caa3703b88 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-048.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-048.md
@@ -2,7 +2,6 @@
 id: 5f3ef6e0eaa7da26e3d34d78
 title: Part 48
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-049.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-049.md
index ec389dea49b..22582b25364 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-049.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-049.md
@@ -2,7 +2,6 @@
 id: 5f3ef6e050279c7a4a7101d3
 title: Part 49
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-050.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-050.md
index 937855c5a59..a969d6db3f0 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-050.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-050.md
@@ -2,7 +2,6 @@
 id: 5f3ef6e04559b939080db057
 title: Part 50
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-051.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-051.md
index 0fca483cc0a..2f997ec377b 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-051.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-051.md
@@ -2,7 +2,6 @@
 id: 5f3ef6e03d719d5ac4738993
 title: Part 51
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-052.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-052.md
index 9bcf2686726..65d6753a666 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-052.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-052.md
@@ -2,7 +2,6 @@
 id: 5f3ef6e05473f91f948724ab
 title: Part 52
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-053.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-053.md
index 467ddd463f1..0f5de19d874 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-053.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-053.md
@@ -2,7 +2,6 @@
 id: 5f3ef6e056bdde6ae6892ba2
 title: Part 53
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-054.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-054.md
index 7395cb90c9b..6584d7c2de7 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-054.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-054.md
@@ -2,7 +2,6 @@
 id: 5f3ef6e0e9629bad967cd71e
 title: Part 54
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-055.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-055.md
index 37df13d79c9..a65a0b5f997 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-055.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-055.md
@@ -2,7 +2,6 @@
 id: 5f3ef6e06d34faac0447fc44
 title: Part 55
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-056.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-056.md
index 94430c1ca24..f4b15c0db2f 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-056.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-056.md
@@ -2,7 +2,6 @@
 id: 5f3ef6e087d56ed3ffdc36be
 title: Part 56
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-057.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-057.md
index c3865816887..742ad0c4670 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-057.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-057.md
@@ -2,7 +2,6 @@
 id: 5f3ef6e0f8c230bdd2349716
 title: Part 57
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-058.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-058.md
index a58bd8b9da9..dfd72dbfe89 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-058.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-058.md
@@ -2,7 +2,6 @@
 id: 5f3ef6e07276f782bb46b93d
 title: Part 58
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-059.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-059.md
index 8b8fa32a303..531fce68b19 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-059.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-059.md
@@ -2,7 +2,6 @@
 id: 5f3ef6e0a81099d9a697b550
 title: Part 59
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-060.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-060.md
index 73a833f59b2..5a4caf08472 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-060.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-060.md
@@ -2,7 +2,6 @@
 id: 5f3ef6e0b431cc215bb16f55
 title: Part 60
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-061.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-061.md
index 3a28b2db535..1f509a1f088 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-061.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-061.md
@@ -2,7 +2,6 @@
 id: 5f3ef6e01f288a026d709587
 title: Part 61
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-062.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-062.md
index 355f707991a..0ccbda5c1d1 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-062.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-062.md
@@ -2,7 +2,6 @@
 id: 5f3f26fa39591db45e5cd7a0
 title: Part 62
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-063.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-063.md
index 369501db0db..cf3569e8d15 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-063.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-063.md
@@ -2,7 +2,6 @@
 id: 5f459225127805351a6ad057
 title: Part 63
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-064.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-064.md
index 520f7b873ec..8ab3e929913 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-064.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-064.md
@@ -2,7 +2,6 @@
 id: 5f459a7ceb8b5c446656d88b
 title: Part 64
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-065.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-065.md
index d81ef47fc9a..0c1885fab03 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-065.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-065.md
@@ -2,7 +2,6 @@
 id: 5f459cf202c2a3472fae6a9f
 title: Part 65
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-066.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-066.md
index be35b57a2de..9103fe0f967 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-066.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-066.md
@@ -2,7 +2,6 @@
 id: 5f459fd48bdc98491ca6d1a3
 title: Part 66
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-067.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-067.md
index 9890e3c8f8e..142341ee80f 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-067.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-067.md
@@ -2,7 +2,6 @@
 id: 5f45a05977e2fa49d9119437
 title: Part 67
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-068.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-068.md
index 11b5fc16f8f..b58f912f2e3 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-068.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-068.md
@@ -2,7 +2,6 @@
 id: 5f45a276c093334f0f6e9df4
 title: Part 68
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-069.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-069.md
index 67024ddaa76..f57811cd14b 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-069.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-069.md
@@ -2,7 +2,6 @@
 id: 5f45a5a7c49a8251f0bdb527
 title: Part 69
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-070.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-070.md
index e1451799c3e..2925333c72f 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-070.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-070.md
@@ -2,7 +2,6 @@
 id: 5f46fc57528aa1c4b5ea7c2e
 title: Part 70
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-071.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-071.md
index aec06f75610..84f08448e22 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-071.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-071.md
@@ -2,7 +2,6 @@
 id: 5f4701b942c824109626c3d8
 title: Part 71
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-072.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-072.md
index e3caff65131..3846dd2d889 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-072.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-072.md
@@ -2,7 +2,6 @@
 id: 5f46ede1ff8fec5ba656b44c
 title: Part 72
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-073.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-073.md
index e2454df03ca..355eb4cd41f 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-073.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-073.md
@@ -2,7 +2,6 @@
 id: 5f45a66d4a2b0453301e5a26
 title: Part 73
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-074.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-074.md
index 09918c93b83..33184b0fc75 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-074.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-074.md
@@ -2,7 +2,6 @@
 id: 5f45b0731d39e15d54df4dfc
 title: Part 74
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-075.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-075.md
index 0b03cd41d37..59c20f1db6a 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-075.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-075.md
@@ -2,7 +2,6 @@
 id: 5f45b25e7ec2405f166b9de1
 title: Part 75
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-076.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-076.md
index c34731ee394..eab718dce7d 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-076.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-076.md
@@ -2,7 +2,6 @@
 id: 5f45b3c93c027860d9298dbd
 title: Part 76
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-077.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-077.md
index 153b3b8e557..75aa128b4d2 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-077.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-077.md
@@ -2,7 +2,6 @@
 id: 5f45b45d099f3e621fbbb256
 title: Part 77
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-078.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-078.md
index 0bf81fb7d9d..ad68e950e31 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-078.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-078.md
@@ -2,7 +2,6 @@
 id: 5f45b4c81cea7763550e40df
 title: Part 78
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-079.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-079.md
index dc6c7b5a192..12d35933491 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-079.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-079.md
@@ -2,7 +2,6 @@
 id: 5f45b715301bbf667badc04a
 title: Part 79
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-080.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-080.md
index cfd41ef1a4b..49227ff7d45 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-080.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-080.md
@@ -2,7 +2,6 @@
 id: 5f46e270702a8456a664f0df
 title: Part 80
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-081.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-081.md
index 4731ad6d700..8af1e4f43cd 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-081.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-081.md
@@ -2,7 +2,6 @@
 id: 5f46e36e745ead58487aabf2
 title: Part 81
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-082.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-082.md
index a4f19af3dd9..27c790a57b7 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-082.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-082.md
@@ -2,7 +2,6 @@
 id: 5f46e7a4750dd05b5a673920
 title: Part 82
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-083.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-083.md
index 87fcecd701a..1f9b4e14c76 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-083.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-083.md
@@ -2,7 +2,6 @@
 id: 5f46e8284aae155c83015dee
 title: Part 83
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-084.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-084.md
index aa6e071c5ba..56d2cdd11ac 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-084.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-084.md
@@ -2,7 +2,6 @@
 id: 5f475bb508746c16c9431d42
 title: Part 84
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-085.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-085.md
index 384426c5704..cf443870fd4 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-085.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-085.md
@@ -2,7 +2,6 @@
 id: 5f475e1c7f71a61d913836c6
 title: Part 85
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-086.md b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-086.md
index 6d467d148de..b1e8c629ef3 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-086.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-css-cafe-menu/part-086.md
@@ -2,7 +2,6 @@
 id: 5f47fe7e31980053a8d4403b
 title: Part 86
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-001.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-001.md
index 664989aa4fc..52deb2d459b 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-001.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-001.md
@@ -2,7 +2,6 @@
 id: 5dc174fcf86c76b9248c6eb2
 title: Part 1
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-002.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-002.md
index d5fdfc232d6..480cda02929 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-002.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-002.md
@@ -2,7 +2,6 @@
 id: 5dc1798ff86c76b9248c6eb3
 title: Part 2
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-003.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-003.md
index 94a3c094c74..0834934540f 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-003.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-003.md
@@ -2,7 +2,6 @@
 id: 5dc17d3bf86c76b9248c6eb4
 title: Part 3
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-004.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-004.md
index 4cc57d28418..c4450731ef6 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-004.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-004.md
@@ -2,7 +2,6 @@
 id: 5dc17dc8f86c76b9248c6eb5
 title: Part 4
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-005.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-005.md
index 575c68fb2bd..ce94beaaa42 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-005.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-005.md
@@ -2,7 +2,6 @@
 id: 5dc2385ff86c76b9248c6eb7
 title: Part 5
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-006.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-006.md
index 1dce1bb274e..3db372c37ec 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-006.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-006.md
@@ -2,7 +2,6 @@
 id: 5dc23991f86c76b9248c6eb8
 title: Part 6
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-007.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-007.md
index 737163dbe9d..ec2edc11a45 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-007.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-007.md
@@ -2,7 +2,6 @@
 id: 5dc23f9bf86c76b9248c6eba
 title: Part 7
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-008.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-008.md
index 6a76f460ff0..5a7b5b00fd5 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-008.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-008.md
@@ -2,7 +2,6 @@
 id: 5dc24073f86c76b9248c6ebb
 title: Part 8
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-009.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-009.md
index e4123af4eef..fa8e1402c05 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-009.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-009.md
@@ -2,7 +2,6 @@
 id: 5dc24165f86c76b9248c6ebc
 title: Part 9
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-010.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-010.md
index 66f7489322f..bd8df61681e 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-010.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-010.md
@@ -2,7 +2,6 @@
 id: 5dc24614f86c76b9248c6ebd
 title: Part 10
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-011.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-011.md
index e732fcb606c..f2022ce4088 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-011.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-011.md
@@ -2,7 +2,6 @@
 id: 5ddbd81294d8ddc1510a8e56
 title: Part 11
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-012.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-012.md
index d54116853be..f7ce57d3fa9 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-012.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-012.md
@@ -2,7 +2,6 @@
 id: 5dfa22d1b521be39a3de7be0
 title: Part 12
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-013.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-013.md
index fc9d2fe53d9..aa125848e47 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-013.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-013.md
@@ -2,7 +2,6 @@
 id: 5dfa2407b521be39a3de7be1
 title: Part 13
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-014.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-014.md
index 43e8e379798..9b4d48eb31b 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-014.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-014.md
@@ -2,7 +2,6 @@
 id: 5dfa30b9eacea3f48c6300ad
 title: Part 14
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-015.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-015.md
index d6ab33c2e8b..1edfcca3c39 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-015.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-015.md
@@ -2,7 +2,6 @@
 id: 5f07be6ef7412fbad0c5626b
 title: Part 15
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-016.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-016.md
index 61be521ca53..d22349b07f8 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-016.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-016.md
@@ -2,7 +2,6 @@
 id: 5f07c98cdb9413cbd4b16750
 title: Part 16
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-017.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-017.md
index b2ee2a53bda..4009c2abcef 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-017.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-017.md
@@ -2,7 +2,6 @@
 id: 5dfa3589eacea3f48c6300ae
 title: Part 17
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-018.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-018.md
index a470ea6c1fd..c643f1c65c3 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-018.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-018.md
@@ -2,7 +2,6 @@
 id: 5dfa371beacea3f48c6300af
 title: Part 18
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-019.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-019.md
index 2171ae36395..add664064fb 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-019.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-019.md
@@ -2,7 +2,6 @@
 id: 5dfa37b9eacea3f48c6300b0
 title: Part 19
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-020.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-020.md
index 0111af9cd39..d7f3cc3f409 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-020.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-020.md
@@ -2,7 +2,6 @@
 id: 5dfb5ecbeacea3f48c6300b1
 title: Part 20
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-021.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-021.md
index c4c0a0cb5da..fefc8dc73ec 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-021.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-021.md
@@ -2,7 +2,6 @@
 id: 5dfb6250eacea3f48c6300b2
 title: Part 21
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-022.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-022.md
index 9c9ca0718eb..09d2cb619d5 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-022.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-022.md
@@ -2,7 +2,6 @@
 id: 5dfb655eeacea3f48c6300b3
 title: Part 22
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-023.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-023.md
index 69e6b839432..816be80c7a6 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-023.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-023.md
@@ -2,7 +2,6 @@
 id: 5dfb6a35eacea3f48c6300b4
 title: Part 23
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-024.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-024.md
index c5fc05215df..4d5bf921980 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-024.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-024.md
@@ -2,7 +2,6 @@
 id: 5ef9b03c81a63668521804d0
 title: Part 24
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-025.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-025.md
index 4e5894b5cf6..22a61f7572a 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-025.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-025.md
@@ -2,7 +2,6 @@
 id: 5ef9b03c81a63668521804d1
 title: Part 25
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-026.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-026.md
index d50694e5465..fcc2703451e 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-026.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-026.md
@@ -2,7 +2,6 @@
 id: 5ef9b03c81a63668521804d2
 title: Part 26
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-027.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-027.md
index 6aa6651249e..799ebec3fc2 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-027.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-027.md
@@ -2,7 +2,6 @@
 id: 5ef9b03c81a63668521804d3
 title: Part 27
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-028.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-028.md
index 5e69286ca0b..bd2b2c85fb0 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-028.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-028.md
@@ -2,7 +2,6 @@
 id: 5efada803cbd2bbdab94e332
 title: Part 28
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-029.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-029.md
index b801fb96d6c..17b06d9909c 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-029.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-029.md
@@ -2,7 +2,6 @@
 id: 5efae0543cbd2bbdab94e333
 title: Part 29
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-030.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-030.md
index dccc1cc959d..1c5ff7a9e48 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-030.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-030.md
@@ -2,7 +2,6 @@
 id: 5efae16e3cbd2bbdab94e334
 title: Part 30
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-031.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-031.md
index 96f1fa300a2..fa419c3ceb1 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-031.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-031.md
@@ -2,7 +2,6 @@
 id: 5ef9b03c81a63668521804d4
 title: Part 31
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-032.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-032.md
index 8fcc3954e2b..d5f4c9dd068 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-032.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-032.md
@@ -2,7 +2,6 @@
 id: 5f07fb1579dc934717801375
 title: Part 32
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-033.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-033.md
index 239e00d37e9..fb52929ab09 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-033.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-033.md
@@ -2,7 +2,6 @@
 id: 5ef9b03c81a63668521804d5
 title: Part 33
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-034.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-034.md
index f1cea037bea..75b05a25073 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-034.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-034.md
@@ -2,7 +2,6 @@
 id: 5ef9b03c81a63668521804d6
 title: Part 34
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-035.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-035.md
index d6db2c75df5..22643b2bda3 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-035.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-035.md
@@ -2,7 +2,6 @@
 id: 5ef9b03c81a63668521804d7
 title: Part 35
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-036.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-036.md
index 8c47d7de503..95b638dbd90 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-036.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-036.md
@@ -2,7 +2,6 @@
 id: 5ef9b03c81a63668521804d8
 title: Part 36
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-037.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-037.md
index 3f5086879c9..5bf365dd0b2 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-037.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-037.md
@@ -2,7 +2,6 @@
 id: 5efb23e70dc218d6c85f89b1
 title: Part 37
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-038.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-038.md
index 9538c24572d..4462a7f0a30 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-038.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-038.md
@@ -2,7 +2,6 @@
 id: 7cf9b03d81a65668421804c3
 title: Part 38
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-039.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-039.md
index dc31072801e..93ff0a88bcd 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-039.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-039.md
@@ -2,7 +2,6 @@
 id: 5ef9b03c81a63668521804d9
 title: Part 39
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-040.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-040.md
index 6df759c87b3..4710fec6c49 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-040.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-040.md
@@ -2,7 +2,6 @@
 id: 5ef9b03c81a63668521804db
 title: Part 40
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-041.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-041.md
index b5665f1ad1b..3e5f44da4ea 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-041.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-041.md
@@ -2,7 +2,6 @@
 id: 5ef9b03c81a63668521804da
 title: Part 41
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-042.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-042.md
index d4611df872e..6121e6af41c 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-042.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-042.md
@@ -2,7 +2,6 @@
 id: 5efb2c990dc218d6c85f89b2
 title: Part 42
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-043.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-043.md
index 73db5b81644..0e25897e521 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-043.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-043.md
@@ -2,7 +2,6 @@
 id: 5ef9b03c81a63668521804dc
 title: Part 43
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-044.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-044.md
index c94d7658b64..8c46678e3ed 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-044.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-044.md
@@ -2,7 +2,6 @@
 id: 5ef9b03c81a63668521804dd
 title: Part 44
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-045.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-045.md
index 32e5edc9699..0caca5302d8 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-045.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-045.md
@@ -2,7 +2,6 @@
 id: 5ef9b03c81a63668521804df
 title: Part 45
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-046.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-046.md
index 5031062a5e5..4d0cf0371ff 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-046.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-046.md
@@ -2,7 +2,6 @@
 id: 5f05a1d8e233dff4a68508d8
 title: Part 46
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-047.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-047.md
index ca5ed9cc99b..f6dc00edb1d 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-047.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-047.md
@@ -2,7 +2,6 @@
 id: 5ef9b03c81a63668521804de
 title: Part 47
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-048.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-048.md
index 71977804eeb..722670fbe54 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-048.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-048.md
@@ -2,7 +2,6 @@
 id: 5f1a80975fc4bcae0edb3497
 title: Part 48
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-049.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-049.md
index a8ead902c6b..77df92f0cab 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-049.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-049.md
@@ -2,7 +2,6 @@
 id: 5ef9b03c81a63668521804e1
 title: Part 49
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-050.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-050.md
index ae8d72e535e..4c909d33f98 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-050.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-050.md
@@ -2,7 +2,6 @@
 id: 5f0d48e7b435f13ab6550051
 title: Part 50
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-051.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-051.md
index 18c529884af..63ce06f1074 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-051.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-051.md
@@ -2,7 +2,6 @@
 id: 5f0d4ab1b435f13ab6550052
 title: Part 51
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-052.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-052.md
index 0c844c4b5f5..800a478db46 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-052.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-052.md
@@ -2,7 +2,6 @@
 id: 5f0d4d04b435f13ab6550053
 title: Part 52
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-053.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-053.md
index 7f0407c2a1e..086f5206f3a 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-053.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-053.md
@@ -2,7 +2,6 @@
 id: 5ef9b03c81a63668521804e2
 title: Part 53
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-054.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-054.md
index c1fdebfebd1..67c47889ba3 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-054.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-054.md
@@ -2,7 +2,6 @@
 id: 5efc54138d6a74d05e68af76
 title: Part 54
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-055.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-055.md
index 1a79f8a1259..3192711ce46 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-055.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-055.md
@@ -2,7 +2,6 @@
 id: 5efc4f528d6a74d05e68af74
 title: Part 55
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-056.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-056.md
index 5b0b09b228b..0f3e24421e9 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-056.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-056.md
@@ -2,7 +2,6 @@
 id: 5efc518e8d6a74d05e68af75
 title: Part 56
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-057.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-057.md
index 06391b98efc..59598668032 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-057.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-057.md
@@ -2,7 +2,6 @@
 id: 5ef9b03c81a63668521804e3
 title: Part 57
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-058.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-058.md
index cf3c94776d9..ac53d2d6a1c 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-058.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-058.md
@@ -2,7 +2,6 @@
 id: 5efc575c8d6a74d05e68af77
 title: Part 58
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-059.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-059.md
index 5f1463fafcc..9b7b261df92 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-059.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-059.md
@@ -2,7 +2,6 @@
 id: 5f1a89f1190aff21ae42105a
 title: Part 59
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-060.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-060.md
index 8c09f4a833f..fd3b815c64f 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-060.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-060.md
@@ -2,7 +2,6 @@
 id: 5ef9b03c81a63668521804e5
 title: Part 60
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-061.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-061.md
index 54d3ca32225..b523017f18d 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-061.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-061.md
@@ -2,7 +2,6 @@
 id: 5ef9b03c81a63668521804e7
 title: Part 61
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-062.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-062.md
index b32e07a5dae..47e129b7e83 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-062.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-062.md
@@ -2,7 +2,6 @@
 id: 5ef9b03c81a63668521804e8
 title: Part 62
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-063.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-063.md
index 35e547b25ec..54bc8ce92cc 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-063.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-063.md
@@ -2,7 +2,6 @@
 id: 5ef9b03c81a63668521804e9
 title: Part 63
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-064.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-064.md
index a771c07e057..b42c328cb5a 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-064.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-064.md
@@ -2,7 +2,6 @@
 id: 5ef9b03c81a63668521804ea
 title: Part 64
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-065.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-065.md
index 989fea082d0..15a4866e8a9 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-065.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-065.md
@@ -2,7 +2,6 @@
 id: 5ef9b03c81a63668521804eb
 title: Part 65
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-066.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-066.md
index 0ce0f49b7cf..c92070105ae 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-066.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-066.md
@@ -2,7 +2,6 @@
 id: 5ef9b03c81a63668521804ec
 title: Part 66
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-067.md b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-067.md
index 27a817149ae..caf68cc39f8 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-067.md
+++ b/curriculum/challenges/english/01-responsive-web-design/basic-html-cat-photo-app/part-067.md
@@ -2,7 +2,6 @@
 id: 5ef9b03c81a63668521804ee
 title: Part 67
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-001.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-001.md
index 57c09953132..571ed31ed06 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-001.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-001.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98c9
 title: Part 1
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-002.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-002.md
index f13e83fc16e..ff3c25a3d6e 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-002.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-002.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98ca
 title: Part 2
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-003.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-003.md
index 7e34d701e66..e418dd3ba7c 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-003.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-003.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98cb
 title: Part 3
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-004.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-004.md
index b794984f583..12d799c5b78 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-004.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-004.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98cc
 title: Part 4
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-005.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-005.md
index d820a2e1419..77fb985fa6a 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-005.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-005.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98cd
 title: Part 5
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-006.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-006.md
index 297800581ed..edef5ae5f24 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-006.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-006.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98ce
 title: Part 6
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-007.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-007.md
index e325daf2b8c..9390725eb3d 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-007.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-007.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98cf
 title: Part 7
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-008.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-008.md
index c2ef69512e2..f4ca4ead33c 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-008.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-008.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98d0
 title: Part 8
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-009.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-009.md
index d55321a3d74..85cbb9b69f2 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-009.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-009.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98d1
 title: Part 9
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-010.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-010.md
index 84584630632..f899d9d39c6 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-010.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-010.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98d2
 title: Part 10
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-011.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-011.md
index 91472106a43..4f3737d321f 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-011.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-011.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98d3
 title: Part 11
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-012.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-012.md
index 499831a08cf..92a8f516335 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-012.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-012.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98d4
 title: Part 12
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-013.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-013.md
index 7f7c5b2a13f..c8856f4027c 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-013.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-013.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98d5
 title: Part 13
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-014.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-014.md
index dce826a1900..323e0514e20 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-014.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-014.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98d6
 title: Part 14
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-015.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-015.md
index 946ae92f77d..efcf05e5d20 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-015.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-015.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98d7
 title: Part 15
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-016.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-016.md
index 899beeee917..9b843e543f8 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-016.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-016.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98d8
 title: Part 16
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-017.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-017.md
index 9cec3f3c8ee..2c55d5ed5d2 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-017.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-017.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98d9
 title: Part 17
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-018.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-018.md
index a5b15a9af3d..511df80d318 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-018.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-018.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98da
 title: Part 18
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-019.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-019.md
index e144287bd88..d5a45c65212 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-019.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-019.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98db
 title: Part 19
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-020.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-020.md
index 260bfe3c600..e8f039c712b 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-020.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-020.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98dc
 title: Part 20
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-021.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-021.md
index 6c0710a983e..d7b6859b188 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-021.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-021.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98dd
 title: Part 21
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-022.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-022.md
index 5be35544c9c..68a16dd3bb3 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-022.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-022.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98de
 title: Part 22
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-023.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-023.md
index 38c3775b444..7e0ce5b0fac 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-023.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-023.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98df
 title: Part 23
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-024.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-024.md
index cb54b4327d4..b12d36143b1 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-024.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-024.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98e0
 title: Part 24
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-025.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-025.md
index 03758202167..5d058ecef01 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-025.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-025.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98e1
 title: Part 25
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-026.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-026.md
index 42280fe5306..e80e1f3495f 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-026.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-026.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98e2
 title: Part 26
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-027.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-027.md
index df9bf3d7358..6e8fe8bb9d0 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-027.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-027.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98e3
 title: Part 27
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-028.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-028.md
index 7f29a1b693a..8db048ec76c 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-028.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-028.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98e4
 title: Part 28
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-029.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-029.md
index f5452a94cf9..a98e6796ac6 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-029.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-029.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98e5
 title: Part 29
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-030.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-030.md
index 57e06943e71..1850408eadc 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-030.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-030.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98e6
 title: Part 30
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-031.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-031.md
index c7b222394f3..c3371c5eb68 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-031.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-031.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98e7
 title: Part 31
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-032.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-032.md
index f2bceddc1f1..bcc61da9d4c 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-032.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-032.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98e8
 title: Part 32
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-033.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-033.md
index e8c752a112b..2490a6d0579 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-033.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-033.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98e9
 title: Part 33
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-034.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-034.md
index aa4c877f527..da1a428e880 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-034.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-034.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98ea
 title: Part 34
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-035.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-035.md
index 3266e78507e..e0985966145 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-035.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-035.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98eb
 title: Part 35
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-036.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-036.md
index bc3f2cf39aa..874da08601f 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-036.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-036.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98ec
 title: Part 36
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-037.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-037.md
index e13d12af2e7..2bd308aef07 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-037.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-037.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98ed
 title: Part 37
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-038.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-038.md
index 78b33d76241..95721de2bcc 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-038.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-038.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98ee
 title: Part 38
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-039.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-039.md
index 544335af5fd..9d73d84e119 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-039.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-039.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98ef
 title: Part 39
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-040.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-040.md
index 521443c1e83..0424fa51827 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-040.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-040.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98f0
 title: Part 40
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-041.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-041.md
index df06c00fe92..7822740c0ce 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-041.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-041.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98f1
 title: Part 41
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-042.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-042.md
index f563549f3f4..8e4220a041d 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-042.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-042.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98f2
 title: Part 42
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-043.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-043.md
index da0cbc79b44..caca2811ec1 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-043.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-043.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98f3
 title: Part 43
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-044.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-044.md
index dfe1fb0da2d..ae25d69d518 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-044.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-044.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98f4
 title: Part 44
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-045.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-045.md
index e43eedf03d0..c3e93631ad3 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-045.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-045.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98f5
 title: Part 45
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-046.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-046.md
index 91f035f6ba5..afd3c359fec 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-046.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-046.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98f6
 title: Part 46
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-047.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-047.md
index 07715676dae..2252be0cf74 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-047.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-047.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98f7
 title: Part 47
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-048.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-048.md
index 6af679189cf..9541e152fc4 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-048.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-048.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98f8
 title: Part 48
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-049.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-049.md
index 637245d90d4..c29a5f74b68 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-049.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-049.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98f9
 title: Part 49
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-050.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-050.md
index 199b9168fd3..b46d0c2b04d 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-050.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-050.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98fa
 title: Part 50
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-051.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-051.md
index e30e7043bee..762ce7e13a9 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-051.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-051.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98fb
 title: Part 51
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-052.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-052.md
index 52005afaf36..47511cc85e9 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-052.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-052.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98fc
 title: Part 52
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-053.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-053.md
index c5578c9988f..a8779fe1bda 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-053.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-053.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98fd
 title: Part 53
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-054.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-054.md
index 5839eec4187..68436b9b5e2 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-054.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-054.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98fe
 title: Part 54
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-055.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-055.md
index 8f92c3e551d..6c9ed9849a0 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-055.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-055.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e98ff
 title: Part 55
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-056.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-056.md
index e9cd7b11fcb..9206b627c74 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-056.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-056.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9900
 title: Part 56
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-057.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-057.md
index de6a6906f80..1b2beb1a7c8 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-057.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-057.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9901
 title: Part 57
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-058.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-058.md
index a7ae74c3d4c..29d0ebb432a 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-058.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-058.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9902
 title: Part 58
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-059.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-059.md
index 151cdd87f2a..af0dad00e0d 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-059.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-059.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9903
 title: Part 59
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-060.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-060.md
index aa4d0ba464c..bdbb40308bd 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-060.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-060.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9904
 title: Part 60
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-061.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-061.md
index 3bdbfe43b7c..c8ebf71508b 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-061.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-061.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9905
 title: Part 61
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-062.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-062.md
index f506b6ec5a3..50f4e51b66c 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-062.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-062.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9906
 title: Part 62
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-063.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-063.md
index a757aa5a3d0..720c0fe5f88 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-063.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-063.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9907
 title: Part 63
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-064.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-064.md
index 031fff0a2b1..fce35aca457 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-064.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-064.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9908
 title: Part 64
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-065.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-065.md
index 7f3e6107807..c10835e1a43 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-065.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-065.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9909
 title: Part 65
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-066.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-066.md
index f8fc40ddaef..baa701debb4 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-066.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-066.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e990a
 title: Part 66
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-067.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-067.md
index c088b4fad76..438de913d14 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-067.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-067.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e990b
 title: Part 67
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-068.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-068.md
index f6ed1d077cc..c3619e9e598 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-068.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-068.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e990c
 title: Part 68
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-069.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-069.md
index aa9d2c41407..cecb77d0e26 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-069.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-069.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e990d
 title: Part 69
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-070.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-070.md
index 698d872ce0c..4634322d4ae 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-070.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-070.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e990e
 title: Part 70
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-071.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-071.md
index 07b12ad606a..8b951952d57 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-071.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-071.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e990f
 title: Part 71
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-072.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-072.md
index c23bb7b5113..0270394acbf 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-072.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-072.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9910
 title: Part 72
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-073.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-073.md
index 79fd42be364..395ed64ea56 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-073.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-073.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9911
 title: Part 73
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-074.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-074.md
index 20030ac4e76..34c5f594df2 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-074.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-074.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9912
 title: Part 74
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-075.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-075.md
index 4176e73b76b..cf64ab44e2c 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-075.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-075.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9913
 title: Part 75
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-076.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-076.md
index 7e80cc94d15..9921518a3e1 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-076.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-076.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9914
 title: Part 76
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-077.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-077.md
index f12fb28110f..ac79d3842c8 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-077.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-077.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9916
 title: Part 77
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-078.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-078.md
index e8574f7de37..c0cae046683 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-078.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-078.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9917
 title: Part 78
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-079.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-079.md
index b07c61e50f2..0a665ac2905 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-079.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-079.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9918
 title: Part 79
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-080.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-080.md
index 418f18dc8d7..cd2c882b120 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-080.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-080.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9919
 title: Part 80
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-081.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-081.md
index 4fb8eca77e8..219474be25b 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-081.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-081.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e991a
 title: Part 81
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-082.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-082.md
index e3df5cee8b3..e324ff5db05 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-082.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-082.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e991b
 title: Part 82
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-083.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-083.md
index 8c327d6ccb9..3260931709a 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-083.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-083.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e991c
 title: Part 83
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-084.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-084.md
index 0f99d5becc7..49e27d8f265 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-084.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-084.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e991d
 title: Part 84
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-085.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-085.md
index 40b761672d2..d7b5e8bdd55 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-085.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-085.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e991e
 title: Part 85
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-086.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-086.md
index c36cc260472..e5911130139 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-086.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-086.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e991f
 title: Part 86
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-087.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-087.md
index 59572c22484..8d58ede8b57 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-087.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-087.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9920
 title: Part 87
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-088.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-088.md
index cca73b49a1f..19607505221 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-088.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-088.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9921
 title: Part 88
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-089.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-089.md
index 9154bc6d27f..3cf757c9896 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-089.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-089.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9922
 title: Part 89
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-090.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-090.md
index 91d9762530d..32d0ebbc0ab 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-090.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-090.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9923
 title: Part 90
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-091.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-091.md
index bf27300bab0..c8d493b2c7f 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-091.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-091.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9924
 title: Part 91
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-092.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-092.md
index b8857485905..3fba089e37a 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-092.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-092.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9925
 title: Part 92
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-093.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-093.md
index 8f86752fd50..627c06b0ae1 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-093.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-093.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9926
 title: Part 93
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-094.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-094.md
index b5236ebb21d..c79a6363b2f 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-094.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-094.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9927
 title: Part 94
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-095.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-095.md
index 49da5167079..89aee70992a 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-095.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-095.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9928
 title: Part 95
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-096.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-096.md
index ccedfb59b2f..d1099a68e94 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-096.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-096.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9929
 title: Part 96
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-097.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-097.md
index de80769af56..5eb2bc7a95c 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-097.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-097.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e992a
 title: Part 97
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-098.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-098.md
index a792becf8c7..5781fb142d8 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-098.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-098.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e992b
 title: Part 98
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-099.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-099.md
index 1cf2e81b416..579af07316e 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-099.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-099.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e992c
 title: Part 99
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-100.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-100.md
index 37c1435b263..7653615ae91 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-100.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-100.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e992d
 title: Part 100
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-101.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-101.md
index ab7242a22ba..394fcd9501a 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-101.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-101.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e992e
 title: Part 101
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-102.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-102.md
index 75a6e5b8253..f13c65693e4 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-102.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-102.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e992f
 title: Part 102
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-103.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-103.md
index 6df26aa920a..55164d046e1 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-103.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-103.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9930
 title: Part 103
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-104.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-104.md
index 78606cc9672..a7f51fd59f5 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-104.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-104.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9932
 title: Part 104
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-105.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-105.md
index 6d394da9d14..93dbf3dd423 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-105.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-105.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9933
 title: Part 105
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-106.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-106.md
index f89f034bdf2..4b4ed84c526 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-106.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-106.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9915
 title: Part 106
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-107.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-107.md
index ee4f03b78a6..d683ebc1102 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-107.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-107.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9934
 title: Part 107
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-108.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-108.md
index a81ec03c3cd..af6ee548052 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-108.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-108.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9935
 title: Part 108
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-109.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-109.md
index 7899bcc5f64..f3ababb987a 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-109.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-109.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9931
 title: Part 109
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-110.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-110.md
index 6836813fb16..8b7ebf9dbfa 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-110.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-110.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9936
 title: Part 110
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-111.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-111.md
index 9d205afdd0e..112cab36928 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-111.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-111.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9937
 title: Part 111
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-112.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-112.md
index 994d60ef3d9..049fc173f6b 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-112.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-112.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9938
 title: Part 112
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-113.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-113.md
index e2fa3515429..032cdf008a6 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-113.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-113.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e9939
 title: Part 113
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-114.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-114.md
index 4ba22720187..f2d78e8375b 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-114.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-114.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e993a
 title: Part 114
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-115.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-115.md
index 3bdae221aa5..8c5e36ddfd4 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-115.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-115.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e993b
 title: Part 115
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-116.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-116.md
index 3ac4ae1a54c..4057bf83fbf 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-116.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-116.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e993c
 title: Part 116
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-117.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-117.md
index aa8cae6f377..fa12072d894 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-117.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-117.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e993d
 title: Part 117
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-118.md b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-118.md
index 94300247536..dd77427c84f 100644
--- a/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-118.md
+++ b/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-118.md
@@ -2,7 +2,6 @@
 id: 5d822fd413a79914d39e993e
 title: Part 118
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-001.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-001.md
index 6d3e830d1a9..ad770c9447a 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-001.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-001.md
@@ -2,7 +2,6 @@
 id: 5d5a813321b9e3db6c106a46
 title: Part 1
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-002.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-002.md
index 085723f79b0..1001487e0e2 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-002.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-002.md
@@ -2,7 +2,6 @@
 id: 5d5a8dd907f328a948d398ce
 title: Part 2
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-003.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-003.md
index 70c813c83bc..9e4ea10111b 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-003.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-003.md
@@ -2,7 +2,6 @@
 id: 5d5a8f1c07f328a948d398cf
 title: Part 3
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-004.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-004.md
index 392fe6976f9..4ad866c623b 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-004.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-004.md
@@ -2,7 +2,6 @@
 id: 5d5a903507f328a948d398d0
 title: Part 4
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-005.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-005.md
index 6cfc2e5db8e..95fb0ac25e3 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-005.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-005.md
@@ -2,7 +2,6 @@
 id: 5d5aaa5807f328a948d398d1
 title: Part 5
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-006.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-006.md
index afe478f34b2..802cd8fca7e 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-006.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-006.md
@@ -2,7 +2,6 @@
 id: 5d5aab5d07f328a948d398d2
 title: Part 6
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-007.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-007.md
index af7eff2001f..a0215bb4adf 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-007.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-007.md
@@ -2,7 +2,6 @@
 id: 5d5aac9c07f328a948d398d3
 title: Part 7
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-008.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-008.md
index db16443de82..1dbc93e2397 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-008.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-008.md
@@ -2,7 +2,6 @@
 id: 5d5aad2307f328a948d398d4
 title: Part 8
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-009.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-009.md
index 8f721849f07..a94e4b180e1 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-009.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-009.md
@@ -2,7 +2,6 @@
 id: 5d5aae1207f328a948d398d5
 title: Part 9
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-010.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-010.md
index 2f83ed8cb5d..77b6d0763dd 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-010.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-010.md
@@ -2,7 +2,6 @@
 id: 5d5ab57f07f328a948d398d6
 title: Part 10
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-011.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-011.md
index e906979763b..0c4de2c3332 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-011.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-011.md
@@ -2,7 +2,6 @@
 id: 5d5b66ce07f328a948d398d7
 title: Part 11
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-012.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-012.md
index fd1798a1194..ac1819ed94c 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-012.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-012.md
@@ -2,7 +2,6 @@
 id: 5d64cf8f853b56a21cd16319
 title: Part 12
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-013.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-013.md
index 90a42236027..c8d9ee6687b 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-013.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-013.md
@@ -2,7 +2,6 @@
 id: 5d651ee1ee291f75bbd738ee
 title: Part 13
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-014.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-014.md
index 0177af66655..75386c2218d 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-014.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-014.md
@@ -2,7 +2,6 @@
 id: 5d652e5a6e6bf7a6a27aa80a
 title: Part 14
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-015.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-015.md
index d47c2c6bf30..2841a2d34d2 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-015.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-015.md
@@ -2,7 +2,6 @@
 id: 5d653b2d6e6bf7a6a27aa80b
 title: Part 15
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-016.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-016.md
index 42a904e7c81..0628d73ebc7 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-016.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-016.md
@@ -2,7 +2,6 @@
 id: 5d653c4d6e6bf7a6a27aa80c
 title: Part 16
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-017.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-017.md
index b2a205947b0..a7df6d54c2a 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-017.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-017.md
@@ -2,7 +2,6 @@
 id: 5d6542826e6bf7a6a27aa80d
 title: Part 17
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-018.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-018.md
index 16ab64172c5..5ff5f88cd75 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-018.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-018.md
@@ -2,7 +2,6 @@
 id: 5d65f2c62012114c7d7c57eb
 title: Part 18
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-019.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-019.md
index 86310f8cfe1..d195680be93 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-019.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-019.md
@@ -2,7 +2,6 @@
 id: 5d65f4cd2012114c7d7c57ec
 title: Part 19
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-020.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-020.md
index b3163b553bb..375e1e48821 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-020.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-020.md
@@ -2,7 +2,6 @@
 id: 5d65f6392012114c7d7c57ed
 title: Part 20
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-021.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-021.md
index 71c639e47d4..a44fe332d6e 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-021.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-021.md
@@ -2,7 +2,6 @@
 id: 5d6606634bab337fbb433884
 title: Part 21
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-022.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-022.md
index c5f1498ee0b..7311447ee81 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-022.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-022.md
@@ -2,7 +2,6 @@
 id: 5d66093c4bab337fbb433885
 title: Part 22
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-023.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-023.md
index 7b09a0c1c4e..9c585159825 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-023.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-023.md
@@ -2,7 +2,6 @@
 id: 5d660a32e0696bdec46938d5
 title: Part 23
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-024.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-024.md
index 77b14f127f8..68888db45eb 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-024.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-024.md
@@ -2,7 +2,6 @@
 id: 5d6616d8e0696bdec46938d6
 title: Part 24
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-025.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-025.md
index 599566c2030..f8710f45de2 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-025.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-025.md
@@ -2,7 +2,6 @@
 id: 5d661814e0696bdec46938d7
 title: Part 25
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-026.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-026.md
index 6a36996f40a..9ccd21e38d8 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-026.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-026.md
@@ -2,7 +2,6 @@
 id: 5d66198de0696bdec46938d8
 title: Part 26
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-027.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-027.md
index 9a50230fd7c..dd88cf085dd 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-027.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-027.md
@@ -2,7 +2,6 @@
 id: 5d661bc6e0696bdec46938d9
 title: Part 27
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-028.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-028.md
index a9d0af16db6..61d2d06dea8 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-028.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-028.md
@@ -2,7 +2,6 @@
 id: 5d6653d5e0696bdec46938da
 title: Part 28
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-029.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-029.md
index 46b73eab817..542adecad80 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-029.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-029.md
@@ -2,7 +2,6 @@
 id: 5d665983e0696bdec46938dc
 title: Part 29
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-030.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-030.md
index b51a3f52577..30acc1099cd 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-030.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-030.md
@@ -2,7 +2,6 @@
 id: 5d674fd9e0696bdec46938dd
 title: Part 30
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-031.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-031.md
index 750ca8d1753..da536421c47 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-031.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-031.md
@@ -2,7 +2,6 @@
 id: 5d6752e3e0696bdec46938de
 title: Part 31
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-032.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-032.md
index fe54c77600b..3cb012542c5 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-032.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-032.md
@@ -2,7 +2,6 @@
 id: 5d6755fce0696bdec46938df
 title: Part 32
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-033.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-033.md
index e02497eda79..e42e5a56b4e 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-033.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-033.md
@@ -2,7 +2,6 @@
 id: 5d675726e0696bdec46938e0
 title: Part 33
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-034.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-034.md
index b2feeb15d91..d16b0ba8941 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-034.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-034.md
@@ -2,7 +2,6 @@
 id: 5d678366e0696bdec46938e1
 title: Part 34
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-035.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-035.md
index a7445c87fba..602409a620b 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-035.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-035.md
@@ -2,7 +2,6 @@
 id: 5d67845ee0696bdec46938e2
 title: Part 35
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-036.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-036.md
index d3aa1b4f8f6..c4fb1877827 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-036.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-036.md
@@ -2,7 +2,6 @@
 id: 5d67880ee0696bdec46938e3
 title: Part 36
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-037.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-037.md
index 318198bc85a..dcb63cf53f4 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-037.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-037.md
@@ -2,7 +2,6 @@
 id: 5d67ad3de0696bdec46938e4
 title: Part 37
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-038.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-038.md
index 2f257b2bd90..53e52250aa5 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-038.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-038.md
@@ -2,7 +2,6 @@
 id: 5d67ae95e0696bdec46938e5
 title: Part 38
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-039.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-039.md
index 66f47281b62..820d3e3c57a 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-039.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-039.md
@@ -2,7 +2,6 @@
 id: 5d67b284e0696bdec46938e6
 title: Part 39
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-040.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-040.md
index 4e2f9c38a7b..25992e65f0b 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-040.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-040.md
@@ -2,7 +2,6 @@
 id: 5d67b945e0696bdec46938e7
 title: Part 40
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-041.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-041.md
index f1ab0cd42fa..e4ebe018ac1 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-041.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-041.md
@@ -2,7 +2,6 @@
 id: 5d68c3b1e0696bdec46938e8
 title: Part 41
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-042.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-042.md
index 983128a88cd..632b77c7955 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-042.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-042.md
@@ -2,7 +2,6 @@
 id: 5d68c51ee0696bdec46938e9
 title: Part 42
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-043.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-043.md
index 2cb3dbaa04f..ec9b3530f21 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-043.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-043.md
@@ -2,7 +2,6 @@
 id: 5d68c5efe0696bdec46938ea
 title: Part 43
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-044.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-044.md
index 43c207ca464..5f638d6b87b 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-044.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-044.md
@@ -2,7 +2,6 @@
 id: 5d68c758e0696bdec46938eb
 title: Part 44
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-045.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-045.md
index 5322db88bc3..bd0dca2d293 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-045.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-045.md
@@ -2,7 +2,6 @@
 id: 5d68c947e0696bdec46938ec
 title: Part 45
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-046.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-046.md
index 8cea1959a82..c8918a90aec 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-046.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-046.md
@@ -2,7 +2,6 @@
 id: 5d68ca40e0696bdec46938ed
 title: Part 46
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-047.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-047.md
index 396b5e91a67..c7ccf46b860 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-047.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-047.md
@@ -2,7 +2,6 @@
 id: 5d68d3f7e0696bdec46938ee
 title: Part 47
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-048.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-048.md
index b4e5da75023..b3041eb8bd0 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-048.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-048.md
@@ -2,7 +2,6 @@
 id: 5d68d4fde0696bdec46938ef
 title: Part 48
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-049.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-049.md
index a4163ed4250..f6c1105856a 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-049.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-049.md
@@ -2,7 +2,6 @@
 id: 5d68d631e0696bdec46938f0
 title: Part 49
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-050.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-050.md
index 1f82d449a53..f67c4ef761e 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-050.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-050.md
@@ -2,7 +2,6 @@
 id: 5d68dbf7e0696bdec46938f1
 title: Part 50
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-051.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-051.md
index 9aaa4e6572c..7786be2e583 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-051.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-051.md
@@ -2,7 +2,6 @@
 id: 5d6904b6e0696bdec46938f2
 title: Part 51
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-052.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-052.md
index 2759162edb7..5a2fa42861f 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-052.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-052.md
@@ -2,7 +2,6 @@
 id: 5d6905ace0696bdec46938f3
 title: Part 52
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-053.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-053.md
index 4224b80ce55..76e7661f775 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-053.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-053.md
@@ -2,7 +2,6 @@
 id: 5d6f6bfc7c812010bf3327cc
 title: Part 53
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-054.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-054.md
index 95032c41d62..06f5b919793 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-054.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-054.md
@@ -2,7 +2,6 @@
 id: 5d6f6e3c7c812010bf3327cd
 title: Part 54
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-055.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-055.md
index 114d78c6fad..0db34806741 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-055.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-055.md
@@ -2,7 +2,6 @@
 id: 5d6f6f747c812010bf3327ce
 title: Part 55
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-056.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-056.md
index 8d79f534690..3372346a87d 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-056.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-056.md
@@ -2,7 +2,6 @@
 id: 5d6f70937c812010bf3327cf
 title: Part 56
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-057.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-057.md
index b05c61136ab..3b6a0ee2af0 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-057.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-057.md
@@ -2,7 +2,6 @@
 id: 5d6f72657c812010bf3327d0
 title: Part 57
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-058.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-058.md
index 358a9b68a7c..f0d260b2c4f 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-058.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-058.md
@@ -2,7 +2,6 @@
 id: 5d6f736b7c812010bf3327d2
 title: Part 58
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-059.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-059.md
index e836a031227..985a87fa520 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-059.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-059.md
@@ -2,7 +2,6 @@
 id: 5d6f776c7c812010bf3327d3
 title: Part 59
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-060.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-060.md
index 02b8367b224..c17f51581ba 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-060.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-060.md
@@ -2,7 +2,6 @@
 id: 5d6f785f7c812010bf3327d4
 title: Part 60
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-061.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-061.md
index 30d999814d6..6ace885e078 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-061.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-061.md
@@ -2,7 +2,6 @@
 id: 5d6f79667c812010bf3327d6
 title: Part 61
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-062.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-062.md
index 6cfaec3f021..07ceb1c92fe 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-062.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-062.md
@@ -2,7 +2,6 @@
 id: 5d6f7b917c812010bf3327d7
 title: Part 62
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-063.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-063.md
index 81f094efd29..894d7a5899c 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-063.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-063.md
@@ -2,7 +2,6 @@
 id: 5d6f82da7c812010bf3327d8
 title: Part 63
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-064.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-064.md
index b524d781a70..96c0fbbf237 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-064.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-064.md
@@ -2,7 +2,6 @@
 id: 5d6f919f7c812010bf3327d9
 title: Part 64
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-065.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-065.md
index ab3a15d4970..b017565c7a0 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-065.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-065.md
@@ -2,7 +2,6 @@
 id: 5d6f94347c812010bf3327da
 title: Part 65
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-066.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-066.md
index f2eb1d71805..7446c70602d 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-066.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-066.md
@@ -2,7 +2,6 @@
 id: 5d6f96747c812010bf3327db
 title: Part 66
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-067.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-067.md
index 2657a484649..8e1bf2336dd 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-067.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-067.md
@@ -2,7 +2,6 @@
 id: 5d6f98247c812010bf3327dc
 title: Part 67
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-068.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-068.md
index 61c60027c11..acd95ed40a4 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-068.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-068.md
@@ -2,7 +2,6 @@
 id: 5d6f9a4c7c812010bf3327dd
 title: Part 68
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-069.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-069.md
index 9a1c8d600c2..fae62441d9c 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-069.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-069.md
@@ -2,7 +2,6 @@
 id: 5d70850e066dac7142a6d797
 title: Part 69
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-070.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-070.md
index 2723c7ef430..bc14fad19df 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-070.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-070.md
@@ -2,7 +2,6 @@
 id: 5d70862e066dac7142a6d798
 title: Part 70
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-071.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-071.md
index 99857edae9f..312d14b9daa 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-071.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-071.md
@@ -2,7 +2,6 @@
 id: 5d7086d4066dac7142a6d799
 title: Part 71
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-072.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-072.md
index 42f6806fcb5..17174088053 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-072.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-072.md
@@ -2,7 +2,6 @@
 id: 5d7088d2066dac7142a6d79a
 title: Part 72
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-073.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-073.md
index 02b4eb09769..3e6a73a35f5 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-073.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-073.md
@@ -2,7 +2,6 @@
 id: 5d708ab5066dac7142a6d79b
 title: Part 73
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-074.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-074.md
index 9cf58a71be5..e5ce77a7898 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-074.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-074.md
@@ -2,7 +2,6 @@
 id: 5d708be9066dac7142a6d79c
 title: Part 74
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-075.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-075.md
index 29ba976c60a..6657c911d26 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-075.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-075.md
@@ -2,7 +2,6 @@
 id: 5d708c9a066dac7142a6d79d
 title: Part 75
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-076.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-076.md
index 987236b6fc6..e6fb3b11bcd 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-076.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-076.md
@@ -2,7 +2,6 @@
 id: 5d708dd7066dac7142a6d79e
 title: Part 76
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-077.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-077.md
index 349ba31b90a..05d1ed97c65 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-077.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-077.md
@@ -2,7 +2,6 @@
 id: 5d708fae066dac7142a6d79f
 title: Part 77
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-078.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-078.md
index b14b8f48ecf..4d30da2adf1 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-078.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-078.md
@@ -2,7 +2,6 @@
 id: 5d709664066dac7142a6d7a0
 title: Part 78
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-079.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-079.md
index 21b31ceb7af..9f33579eb4e 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-079.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-079.md
@@ -2,7 +2,6 @@
 id: 5d709bbc066dac7142a6d7a2
 title: Part 79
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-080.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-080.md
index f6078b77ab0..4a5b1245fa4 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-080.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-080.md
@@ -2,7 +2,6 @@
 id: 5d71b58b848f6914ab89897d
 title: Part 80
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-081.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-081.md
index 087c07a3489..36a4038bbdf 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-081.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-081.md
@@ -2,7 +2,6 @@
 id: 5d71bdca848f6914ab89897e
 title: Part 81
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-082.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-082.md
index 17ca0af91de..c02ace4419b 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-082.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-082.md
@@ -2,7 +2,6 @@
 id: 5d71bfdf848f6914ab89897f
 title: Part 82
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-083.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-083.md
index bde85b44b18..2c8c4446b18 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-083.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-083.md
@@ -2,7 +2,6 @@
 id: 5d71c20f848f6914ab898980
 title: Part 83
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-084.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-084.md
index 10f5441fdf4..b2245ec45bf 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-084.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-084.md
@@ -2,7 +2,6 @@
 id: 5d71c80e848f6914ab898981
 title: Part 84
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-085.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-085.md
index d6a3ef30155..832ab390889 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-085.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-085.md
@@ -2,7 +2,6 @@
 id: 5d71cab4f27e5122af9f1178
 title: Part 85
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-086.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-086.md
index d62841c1aa4..5969a3aa385 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-086.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-086.md
@@ -2,7 +2,6 @@
 id: 5d71ea30f27e5122af9f1179
 title: Part 86
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-087.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-087.md
index 7297c68345d..fe5a195a5bf 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-087.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-087.md
@@ -2,7 +2,6 @@
 id: 5d71eb0bf27e5122af9f117a
 title: Part 87
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-088.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-088.md
index d79ac0bdd74..6e5eb6858fd 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-088.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-088.md
@@ -2,7 +2,6 @@
 id: 5d71f787e39bedcf8f0998ff
 title: Part 88
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-089.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-089.md
index 4866ebe5b60..9dce1dbcbe7 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-089.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-089.md
@@ -2,7 +2,6 @@
 id: 5d71ed88f27e5122af9f117b
 title: Part 89
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-090.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-090.md
index 099423b47fa..be316ee5def 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-090.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-090.md
@@ -2,7 +2,6 @@
 id: 5d71f217e39bedcf8f0998fd
 title: Part 90
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-091.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-091.md
index 6a2ca7ee38b..66b2d1dbe7e 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-091.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-091.md
@@ -2,7 +2,6 @@
 id: 5d71f669e39bedcf8f0998fe
 title: Part 91
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-092.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-092.md
index 645257eb5a4..e85f287dc78 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-092.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-092.md
@@ -2,7 +2,6 @@
 id: 5d72027ce39bedcf8f099900
 title: Part 92
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-093.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-093.md
index 04c7cc360a8..f4b2111f397 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-093.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-093.md
@@ -2,7 +2,6 @@
 id: 5d721925e39bedcf8f099901
 title: Part 93
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-094.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-094.md
index 069ba5cd2cd..51261280779 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-094.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-094.md
@@ -2,7 +2,6 @@
 id: 5d7dea508360d21c6826a9af
 title: Part 94
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-095.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-095.md
index e48a33fb9e7..e3849adc306 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-095.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-095.md
@@ -2,7 +2,6 @@
 id: 5d7deecc8360d21c6826a9b0
 title: Part 95
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-096.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-096.md
index 6d48e80309e..004e5332eb4 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-096.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-096.md
@@ -2,7 +2,6 @@
 id: 5d7df0458360d21c6826a9b1
 title: Part 96
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-097.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-097.md
index 15ebf4d5aa9..cf72b1e4219 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-097.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-097.md
@@ -2,7 +2,6 @@
 id: 5d7df2a68360d21c6826a9b2
 title: Part 97
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-098.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-098.md
index d1fab1621b9..9cdb504a6ad 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-098.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-098.md
@@ -2,7 +2,6 @@
 id: 5d7df41a8360d21c6826a9b3
 title: Part 98
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-099.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-099.md
index 733c5289901..afeaa03e839 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-099.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-099.md
@@ -2,7 +2,6 @@
 id: 5d7df75a8360d21c6826a9b4
 title: Part 99
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-100.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-100.md
index ddc379fded2..126f85abc7e 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-100.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-100.md
@@ -2,7 +2,6 @@
 id: 5d7dfb908360d21c6826a9b5
 title: Part 100
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-101.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-101.md
index 73b7337ff2e..da7ca1bd08b 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-101.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-101.md
@@ -2,7 +2,6 @@
 id: 5d7e02c88360d21c6826a9b7
 title: Part 101
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-102.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-102.md
index 8744eb01dd4..e654ccfe5b3 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-102.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-102.md
@@ -2,7 +2,6 @@
 id: 5d7e06728360d21c6826a9b8
 title: Part 102
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-103.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-103.md
index 4f28fae7114..9061a39735d 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-103.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-103.md
@@ -2,7 +2,6 @@
 id: 5d7e077e8360d21c6826a9b9
 title: Part 103
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-104.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-104.md
index ce936a10e69..64575797fb8 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-104.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-104.md
@@ -2,7 +2,6 @@
 id: 5d7e13798360d21c6826a9bb
 title: Part 104
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-105.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-105.md
index 936174edd01..fbea3db15cd 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-105.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-105.md
@@ -2,7 +2,6 @@
 id: 5d7f3b6c7c4263f469c36b17
 title: Part 105
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-106.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-106.md
index 6a817855e33..cdfe31a1e50 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-106.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-106.md
@@ -2,7 +2,6 @@
 id: 5d7f405c7c4263f469c36b18
 title: Part 106
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-107.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-107.md
index 6873ff899ac..d3823e41ee2 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-107.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-107.md
@@ -2,7 +2,6 @@
 id: 5d7f410b7c4263f469c36b19
 title: Part 107
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-108.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-108.md
index 37d2a33f791..65402f9fdc7 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-108.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-108.md
@@ -2,7 +2,6 @@
 id: 5d7f41fa7c4263f469c36b1a
 title: Part 108
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-109.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-109.md
index dc479ce7667..2047b40b4ad 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-109.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-109.md
@@ -2,7 +2,6 @@
 id: 5d7f43947c4263f469c36b1b
 title: Part 109
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-110.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-110.md
index 44387923cb1..06c4e12c44e 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-110.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-110.md
@@ -2,7 +2,6 @@
 id: 5d7f44ac7c4263f469c36b1c
 title: Part 110
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-111.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-111.md
index 9cc6f007f48..7979a7d4efe 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-111.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-111.md
@@ -2,7 +2,6 @@
 id: 5d7f459421b11cdaa3f6b15f
 title: Part 111
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-112.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-112.md
index caeb570bc58..a93fe2fb0e5 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-112.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-112.md
@@ -2,7 +2,6 @@
 id: 5d7f4d9421b11cdaa3f6b160
 title: Part 112
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-113.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-113.md
index 79e8657afbf..61c6bf88542 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-113.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-113.md
@@ -2,7 +2,6 @@
 id: 5d80c1d821b11cdaa3f6b164
 title: Part 113
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-114.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-114.md
index 67e698f948c..57ebe95731b 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-114.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-114.md
@@ -2,7 +2,6 @@
 id: 5d80c3c021b11cdaa3f6b165
 title: Part 114
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-115.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-115.md
index 5bcac5a86d0..a6b4de8fea2 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-115.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-115.md
@@ -2,7 +2,6 @@
 id: 5d80d20d21b11cdaa3f6b166
 title: Part 115
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-116.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-116.md
index 7d748761bf3..f47c9189dd0 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-116.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-116.md
@@ -2,7 +2,6 @@
 id: 5d80d67021b11cdaa3f6b167
 title: Part 116
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-117.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-117.md
index 48b830048c7..6ec4315d647 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-117.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-117.md
@@ -2,7 +2,6 @@
 id: 5d80da7521b11cdaa3f6b168
 title: Part 117
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-118.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-118.md
index 0990c04e0f6..8c194b12852 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-118.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-118.md
@@ -2,7 +2,6 @@
 id: 5dbab6d36ef5fe3a704f848c
 title: Part 118
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-119.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-119.md
index 177e1535cd1..f54acedcf94 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-119.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-119.md
@@ -2,7 +2,6 @@
 id: 5dbabb746ef5fe3a704f848d
 title: Part 119
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-120.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-120.md
index dead0f7ac4d..baa929b7487 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-120.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-120.md
@@ -2,7 +2,6 @@
 id: 5dbac08e6ef5fe3a704f848f
 title: Part 120
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-121.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-121.md
index c60f8aacff1..5052d29a4d6 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-121.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-121.md
@@ -2,7 +2,6 @@
 id: 5dbac0c86ef5fe3a704f8490
 title: Part 121
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-122.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-122.md
index 2275a1ee201..0b56d252661 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-122.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-122.md
@@ -2,7 +2,6 @@
 id: 5dbac1f16ef5fe3a704f8491
 title: Part 122
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-123.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-123.md
index ecf86c39da4..a2fcfebb759 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-123.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-123.md
@@ -2,7 +2,6 @@
 id: 5dbac2b06ef5fe3a704f8492
 title: Part 123
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-124.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-124.md
index ec18c10e0d6..e8090562c3e 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-124.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-124.md
@@ -2,7 +2,6 @@
 id: 5dbbb5076ef5fe3a704f849d
 title: Part 124
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-125.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-125.md
index de526543ee1..ac5dd97d3c7 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-125.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-125.md
@@ -2,7 +2,6 @@
 id: 5dbac6176ef5fe3a704f8493
 title: Part 125
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-126.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-126.md
index 52eb4af7013..2b68e3fd2c1 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-126.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-126.md
@@ -2,7 +2,6 @@
 id: 5dbaca566ef5fe3a704f8494
 title: Part 126
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-127.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-127.md
index d61121a4144..205a62986ba 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-127.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-127.md
@@ -2,7 +2,6 @@
 id: 5dbae0446ef5fe3a704f8495
 title: Part 127
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-128.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-128.md
index 2a09400fb09..0cbe27caba0 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-128.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-128.md
@@ -2,7 +2,6 @@
 id: 5dbae1f66ef5fe3a704f8496
 title: Part 128
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-129.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-129.md
index 9f30a7e60c7..b825987ddd2 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-129.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-129.md
@@ -2,7 +2,6 @@
 id: 5dbba5716ef5fe3a704f8497
 title: Part 129
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-130.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-130.md
index e5c2f054f06..e559b64a71b 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-130.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-130.md
@@ -2,7 +2,6 @@
 id: 5dbba70e6ef5fe3a704f8498
 title: Part 130
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-131.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-131.md
index 0ba46f29082..6e3c7078397 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-131.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-131.md
@@ -2,7 +2,6 @@
 id: 5dbba89e6ef5fe3a704f8499
 title: Part 131
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-132.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-132.md
index 4400b7b0072..0964b9fe180 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-132.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-132.md
@@ -2,7 +2,6 @@
 id: 5dbbaeb56ef5fe3a704f849a
 title: Part 132
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-133.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-133.md
index bf0a775af56..35b725d591b 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-133.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-133.md
@@ -2,7 +2,6 @@
 id: 5dbbb00e6ef5fe3a704f849b
 title: Part 133
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-134.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-134.md
index 18bbf895c1a..edd04e7be1b 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-134.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-134.md
@@ -2,7 +2,6 @@
 id: 5dbbb1466ef5fe3a704f849c
 title: Part 134
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-135.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-135.md
index 3a932bfea59..353b7ac4a44 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-135.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-135.md
@@ -2,7 +2,6 @@
 id: 5dbbf3796ef5fe3a704f849e
 title: Part 135
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-136.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-136.md
index b810945ab52..585c1c00a88 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-136.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-136.md
@@ -2,7 +2,6 @@
 id: 5dbbf8d86ef5fe3a704f849f
 title: Part 136
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-137.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-137.md
index 515f4a3361d..44bd3d8b25e 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-137.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-137.md
@@ -2,7 +2,6 @@
 id: 5dbc23a66ef5fe3a704f84a0
 title: Part 137
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-138.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-138.md
index 2f4c55e896d..de7ffb8f218 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-138.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-138.md
@@ -2,7 +2,6 @@
 id: 5dbc2c506ef5fe3a704f84a1
 title: Part 138
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-139.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-139.md
index 9246ad50151..4054066b110 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-139.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-139.md
@@ -2,7 +2,6 @@
 id: 5dbc2d056ef5fe3a704f84a2
 title: Part 139
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-140.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-140.md
index 7530ce8b56f..3bb08731ad6 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-140.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-140.md
@@ -2,7 +2,6 @@
 id: 5dbc2f2d6ef5fe3a704f84a3
 title: Part 140
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-141.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-141.md
index f5a16baaff0..0cd28c4984d 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-141.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-141.md
@@ -2,7 +2,6 @@
 id: 5dbc33956ef5fe3a704f84a4
 title: Part 141
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-142.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-142.md
index 01f2bba3a51..94729a2b313 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-142.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-142.md
@@ -2,7 +2,6 @@
 id: 5dbc35326ef5fe3a704f84a5
 title: Part 142
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-143.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-143.md
index 9ef5514b140..00f5ef670e1 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-143.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-143.md
@@ -2,7 +2,6 @@
 id: 5dbfced07736e5ee7d235544
 title: Part 143
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-144.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-144.md
index 1ac6540326e..f3812ef5358 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-144.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-144.md
@@ -2,7 +2,6 @@
 id: 5dbfd4837736e5ee7d235545
 title: Part 144
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-145.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-145.md
index 46329025f2a..03600b54c01 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-145.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-145.md
@@ -2,7 +2,6 @@
 id: 5dbfdb737736e5ee7d235546
 title: Part 145
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-146.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-146.md
index 3fbff3a3e3f..baf710243ad 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-146.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-146.md
@@ -2,7 +2,6 @@
 id: 5dbfdc377736e5ee7d235547
 title: Part 146
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-147.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-147.md
index 492f4439217..02d0c1f05b7 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-147.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-147.md
@@ -2,7 +2,6 @@
 id: 5dbfe2f37736e5ee7d235548
 title: Part 147
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-148.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-148.md
index 7e9adcef98f..ab49fb95090 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-148.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-148.md
@@ -2,7 +2,6 @@
 id: 5dbfeffe7736e5ee7d235549
 title: Part 148
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-149.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-149.md
index 5a87c03b163..eb653fff6f4 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-149.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-149.md
@@ -2,7 +2,6 @@
 id: 5dbff18d7736e5ee7d23554a
 title: Part 149
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-150.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-150.md
index eb848bbc845..578f10a65b2 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-150.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-150.md
@@ -2,7 +2,6 @@
 id: 5dbff2d07736e5ee7d23554b
 title: Part 150
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-151.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-151.md
index f5e6f9cde00..60720118c48 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-151.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-151.md
@@ -2,7 +2,6 @@
 id: 5dbffd907736e5ee7d23554c
 title: Part 151
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-152.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-152.md
index 5df18a6fb9b..b0c4d2c87d0 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-152.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-152.md
@@ -2,7 +2,6 @@
 id: 5dbffe887736e5ee7d23554d
 title: Part 152
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-153.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-153.md
index 23e738d83ea..b92304bb65e 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-153.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript-rpg-game/part-153.md
@@ -2,7 +2,6 @@
 id: 5dc01a727736e5ee7d23554f
 title: Part 153
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-001.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-001.md
index 5c052f2faa7..cf1d2045af2 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-001.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-001.md
@@ -2,7 +2,6 @@
 id: 5d79253297c0ebb149ea9fed
 title: Part 1
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-002.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-002.md
index 57f650600a6..327781abee8 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-002.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-002.md
@@ -2,7 +2,6 @@
 id: 5d7925323be8848dbc58a07a
 title: Part 2
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-003.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-003.md
index 7210cf44167..ed626c0e460 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-003.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-003.md
@@ -2,7 +2,6 @@
 id: 5d792532f631702ae6d23e11
 title: Part 3
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-004.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-004.md
index 51b59b6f593..b5dc418aca9 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-004.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-004.md
@@ -2,7 +2,6 @@
 id: 5d7925329445167ecc2ac9c9
 title: Part 4
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-005.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-005.md
index 4f0053739d9..fe2cad94141 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-005.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-005.md
@@ -2,7 +2,6 @@
 id: 5d792532b07918c3a5904913
 title: Part 5
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-006.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-006.md
index a2d8e17cd01..923a50a6c5d 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-006.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-006.md
@@ -2,7 +2,6 @@
 id: 5d792533cc8b18b6c133edc7
 title: Part 6
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-007.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-007.md
index 698a434e0ea..8da5112e55a 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-007.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-007.md
@@ -2,7 +2,6 @@
 id: 5d7925337954ed57a565a135
 title: Part 7
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-008.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-008.md
index b4dc6bf9287..65372965f23 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-008.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-008.md
@@ -2,7 +2,6 @@
 id: 5d79253352e33dd59ec2f6de
 title: Part 8
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-009.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-009.md
index 0cc93e35de5..30ecf10d8ce 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-009.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-009.md
@@ -2,7 +2,6 @@
 id: 5d792533d31e4f7fad33011d
 title: Part 9
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-010.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-010.md
index 8a96326a960..31883fab1c4 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-010.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-010.md
@@ -2,7 +2,6 @@
 id: 5d792533e7707b9645d7b540
 title: Part 10
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-011.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-011.md
index 7a01058e415..ca9f4dc25a7 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-011.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-011.md
@@ -2,7 +2,6 @@
 id: 5d79253378595ec568f70ab6
 title: Part 11
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-012.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-012.md
index c5d42e60950..45aa0809b26 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-012.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-012.md
@@ -2,7 +2,6 @@
 id: 5d7925330918ae4a2f282e7e
 title: Part 12
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-013.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-013.md
index 058cc6e2306..c06761202b3 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-013.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-013.md
@@ -2,7 +2,6 @@
 id: 5d792533ed00e75d129e1b18
 title: Part 13
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-014.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-014.md
index 03dfbec4016..04b229fa566 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-014.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-014.md
@@ -2,7 +2,6 @@
 id: 5d792533a5c42fb4d1a4b70d
 title: Part 14
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-015.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-015.md
index ba8f790240b..48066d8b72c 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-015.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-015.md
@@ -2,7 +2,6 @@
 id: 5d79253358e8f646cbeb2bb0
 title: Part 15
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-016.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-016.md
index f20c0289ec2..05fd5c49358 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-016.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-016.md
@@ -2,7 +2,6 @@
 id: 5d792533bb38fab70b27f527
 title: Part 16
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-017.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-017.md
index 2bfcd18928e..d0f6ad09ebf 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-017.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-017.md
@@ -2,7 +2,6 @@
 id: 5d79253386060ed9eb04a070
 title: Part 17
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-018.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-018.md
index b935a9f9dbe..542e8bff8e6 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-018.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-018.md
@@ -2,7 +2,6 @@
 id: 5d792533717672657b81aa69
 title: Part 18
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-019.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-019.md
index 6bfdf304db5..0ad1e387348 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-019.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-019.md
@@ -2,7 +2,6 @@
 id: 5d7925335ab63018dcec11fe
 title: Part 19
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-020.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-020.md
index 053062521b2..cd7ec424294 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-020.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-020.md
@@ -2,7 +2,6 @@
 id: 5d7925330f300c342315066d
 title: Part 20
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-021.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-021.md
index ee4b8859ac8..b0631586f17 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-021.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-021.md
@@ -2,7 +2,6 @@
 id: 5d792533aa6443215c9b16bf
 title: Part 21
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-022.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-022.md
index 187e22ce0c5..d7fe1c34c5c 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-022.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-022.md
@@ -2,7 +2,6 @@
 id: 5d7925334c5e22586dd72962
 title: Part 22
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-023.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-023.md
index 70cd29a7aed..e57d378f17d 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-023.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-023.md
@@ -2,7 +2,6 @@
 id: 5d79253307ecd49e030bdcd1
 title: Part 23
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-024.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-024.md
index 6698387684c..cdb7111aed7 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-024.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-024.md
@@ -2,7 +2,6 @@
 id: 5d792534257122211d3043af
 title: Part 24
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-025.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-025.md
index 9d5654f8ea2..9b4b670abbf 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-025.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-025.md
@@ -2,7 +2,6 @@
 id: 5d7925346f4f2da6df4354a6
 title: Part 25
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-026.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-026.md
index f0a0341a653..7d13be5741e 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-026.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-026.md
@@ -2,7 +2,6 @@
 id: 5d792534cac2dbe0a719ea7a
 title: Part 26
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-027.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-027.md
index c1d29be1e2f..9ff884307b4 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-027.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-027.md
@@ -2,7 +2,6 @@
 id: 5d792534857332d07ccba3ad
 title: Part 27
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-028.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-028.md
index e0b51b2f538..d11e8d3f50f 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-028.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-028.md
@@ -2,7 +2,6 @@
 id: 5d792534d586ef495ea9df90
 title: Part 28
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-029.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-029.md
index b63f718e70f..f32063481cc 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-029.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-029.md
@@ -2,7 +2,6 @@
 id: 5d79253410532e13d13fe574
 title: Part 29
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-030.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-030.md
index fd16734942c..cddabd1f3a8 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-030.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-030.md
@@ -2,7 +2,6 @@
 id: 5d7925342415527083bd6667
 title: Part 30
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-031.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-031.md
index 413029badbb..b5187204842 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-031.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-031.md
@@ -2,7 +2,6 @@
 id: 5d792534c3d26890ac1484d4
 title: Part 31
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-032.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-032.md
index e569a55f9ad..8c07bca8ad7 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-032.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-032.md
@@ -2,7 +2,6 @@
 id: 5d792534b92f3d1cd4410ce3
 title: Part 32
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-033.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-033.md
index 4994f809c5a..6f345602292 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-033.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-033.md
@@ -2,7 +2,6 @@
 id: 5d7925341193948dfe6d76b4
 title: Part 33
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-034.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-034.md
index 8ac21354b8f..43eedf6e4ce 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-034.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-034.md
@@ -2,7 +2,6 @@
 id: 5d792534cf81365cfca58794
 title: Part 34
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-035.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-035.md
index 144ec7fb5c4..0a134e37a2b 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-035.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-035.md
@@ -2,7 +2,6 @@
 id: 5d7925348ee084278ff15556
 title: Part 35
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-036.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-036.md
index d9c9d51436f..32e07738e8a 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-036.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-036.md
@@ -2,7 +2,6 @@
 id: 5d7925348a6a41c32f7a4e3e
 title: Part 36
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-037.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-037.md
index 3f6fc02d67e..7aa4b642166 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-037.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-037.md
@@ -2,7 +2,6 @@
 id: 5d792534408c5be896b0a46e
 title: Part 37
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-038.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-038.md
index f675558b7c0..4463fa69178 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-038.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-038.md
@@ -2,7 +2,6 @@
 id: 5d792534f0eda837510e9192
 title: Part 38
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-039.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-039.md
index 88255b33d39..c5901465d8b 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-039.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-039.md
@@ -2,7 +2,6 @@
 id: 5d7925346b911fce161febaf
 title: Part 39
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-040.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-040.md
index b15d546c444..c3e430d99a9 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-040.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-040.md
@@ -2,7 +2,6 @@
 id: 5d79253483eada4dd69258eb
 title: Part 40
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-041.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-041.md
index 2be84639616..b2db9e16ee4 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-041.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-041.md
@@ -2,7 +2,6 @@
 id: 5d7925342b2b993ef18cd45f
 title: Part 41
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-042.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-042.md
index 184a0f029ee..a7e28c4e194 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-042.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-042.md
@@ -2,7 +2,6 @@
 id: 5d7925341747ad42b12f8e68
 title: Part 42
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-043.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-043.md
index abc77850ad6..58991fdeecd 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-043.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-043.md
@@ -2,7 +2,6 @@
 id: 5d792535b0b3c198ee3ed6f9
 title: Part 43
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-044.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-044.md
index 2549e4951ef..c9adb555085 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-044.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-044.md
@@ -2,7 +2,6 @@
 id: 5d7925357a0533eb221b005d
 title: Part 44
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-045.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-045.md
index 0f0830f1d20..02216d13712 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-045.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-045.md
@@ -2,7 +2,6 @@
 id: 5d792535591db67ee15b4106
 title: Part 45
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-046.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-046.md
index bca86837801..c39dbc82e91 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-046.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-046.md
@@ -2,7 +2,6 @@
 id: 5d792535f1f7adf77de5831d
 title: Part 46
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-047.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-047.md
index 4f0d91a98c4..e11aa91be3d 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-047.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-047.md
@@ -2,7 +2,6 @@
 id: 5d7925353d2c505eafd50cd9
 title: Part 47
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-048.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-048.md
index 11e34a59d03..5dcd70bfaf0 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-048.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-048.md
@@ -2,7 +2,6 @@
 id: 5d79253539b5e944ba3e314c
 title: Part 48
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-049.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-049.md
index a7c77b2638b..20cd8e47d36 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-049.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-049.md
@@ -2,7 +2,6 @@
 id: 5d792535a4f1cbff7a8b9a0b
 title: Part 49
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-050.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-050.md
index 888fc7ccf24..12a6231a7bd 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-050.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-050.md
@@ -2,7 +2,6 @@
 id: 5d792535e3304f15a8890162
 title: Part 50
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-051.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-051.md
index ccfb9d16c86..6d8c0c7393b 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-051.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-051.md
@@ -2,7 +2,6 @@
 id: 5d792535a40ea5ac549d6804
 title: Part 51
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-052.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-052.md
index 0c94128506e..3e70fa47a47 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-052.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-052.md
@@ -2,7 +2,6 @@
 id: 5d7925358c220e5b2998909e
 title: Part 52
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-053.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-053.md
index 1b7668717d6..d42e3ed6974 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-053.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-053.md
@@ -2,7 +2,6 @@
 id: 5d7925357729e183a49498aa
 title: Part 53
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-054.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-054.md
index fa28cae587c..44bcfda469f 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-054.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-054.md
@@ -2,7 +2,6 @@
 id: 5d79253555aa652afbb68086
 title: Part 54
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-055.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-055.md
index 0717db73125..255c0c15f91 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-055.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-055.md
@@ -2,7 +2,6 @@
 id: 5d79253582be306d339564f6
 title: Part 55
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-056.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-056.md
index 7d96f306cc8..6b9cd463b1a 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-056.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-056.md
@@ -2,7 +2,6 @@
 id: 5d7925352047e5c54882c436
 title: Part 56
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-057.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-057.md
index 15bc905ed4a..1d6715e4611 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-057.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-057.md
@@ -2,7 +2,6 @@
 id: 5d79253568e441c0adf9db9f
 title: Part 57
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-058.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-058.md
index 99ce2e691c1..9c8597a3f7f 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-058.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-058.md
@@ -2,7 +2,6 @@
 id: 5d7925356ab117923b80c9cd
 title: Part 58
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-059.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-059.md
index 0d9694f429e..52384bfe1c5 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-059.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-059.md
@@ -2,7 +2,6 @@
 id: 5d792535e54a8cd729a0d708
 title: Part 59
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-060.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-060.md
index 043e3cd7a01..159698fad90 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-060.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-060.md
@@ -2,7 +2,6 @@
 id: 5d7925353b307724a462b06b
 title: Part 60
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-061.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-061.md
index e3d3ad2d0fa..a096c68a103 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-061.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-061.md
@@ -2,7 +2,6 @@
 id: 5d792536735f71d746ee5d99
 title: Part 61
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-062.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-062.md
index 8fe8f435958..0c95656b2bb 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-062.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-062.md
@@ -2,7 +2,6 @@
 id: 5d792536ad340d9dff2e4a96
 title: Part 62
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-063.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-063.md
index 25b03c80239..0536e9608f1 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-063.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-063.md
@@ -2,7 +2,6 @@
 id: 5d7925369614afd92d01fed5
 title: Part 63
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-064.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-064.md
index d6e1c9bef4f..f5c3dd14a0f 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-064.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-064.md
@@ -2,7 +2,6 @@
 id: 5d792536504e68254fe02236
 title: Part 64
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-065.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-065.md
index 44eb6f99378..c94bba2a3c7 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-065.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-065.md
@@ -2,7 +2,6 @@
 id: 5d792536c8d2f0fdfad768fe
 title: Part 65
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-066.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-066.md
index 1a73fcff305..e365923925b 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-066.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-066.md
@@ -2,7 +2,6 @@
 id: 5d79253639028b8ec56afcda
 title: Part 66
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-067.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-067.md
index 75027c7e2e8..61a87f17058 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-067.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-067.md
@@ -2,7 +2,6 @@
 id: 5d792536834f2fd93e84944f
 title: Part 67
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-068.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-068.md
index d29c5c67693..126569a12b2 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-068.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-068.md
@@ -2,7 +2,6 @@
 id: 5d792536ddff9ea73c90a994
 title: Part 68
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-069.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-069.md
index ef014aa1969..60277a2696e 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-069.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-069.md
@@ -2,7 +2,6 @@
 id: 5d7925361596f84067904f7f
 title: Part 69
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-070.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-070.md
index 217a5763050..83a0aeb1e38 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-070.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-070.md
@@ -2,7 +2,6 @@
 id: 5d792536dd8a4daf255488ac
 title: Part 70
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-071.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-071.md
index b5d946bf7a5..618a688ff00 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-071.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-071.md
@@ -2,7 +2,6 @@
 id: 5d792536449c73004f265fb1
 title: Part 71
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-072.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-072.md
index 1819ca42e73..031feb013c3 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-072.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-072.md
@@ -2,7 +2,6 @@
 id: 5d79253685fc69b8fe60a0d2
 title: Part 72
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-073.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-073.md
index fd402588424..f5dc4dd760e 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-073.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-073.md
@@ -2,7 +2,6 @@
 id: 5d792536dc6e3ab29525de9e
 title: Part 73
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-074.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-074.md
index 6d23df9501f..457e826a338 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-074.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-074.md
@@ -2,7 +2,6 @@
 id: 5d792536cfd0fd893c630abb
 title: Part 74
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-075.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-075.md
index f40c36a10e7..727300ec33b 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-075.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-075.md
@@ -2,7 +2,6 @@
 id: 5d7925366a5ff428fb483b40
 title: Part 75
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-076.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-076.md
index a1714ca2954..4661c84e24a 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-076.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-076.md
@@ -2,7 +2,6 @@
 id: 5d7925365d4035eeb2e395fd
 title: Part 76
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-077.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-077.md
index a8986d2ccc3..257f55d2c8d 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-077.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-077.md
@@ -2,7 +2,6 @@
 id: 5d7925364c106e9aaf05a16f
 title: Part 77
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-078.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-078.md
index 5e18835201c..7a426f9e39c 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-078.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-078.md
@@ -2,7 +2,6 @@
 id: 5d792536970cd8e819cc8a96
 title: Part 78
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-079.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-079.md
index 193442d45a9..ed53fd7747f 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-079.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-079.md
@@ -2,7 +2,6 @@
 id: 5d792536e33baeaa60129e0a
 title: Part 79
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-080.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-080.md
index 45f60c50149..d8c154a53a2 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-080.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-080.md
@@ -2,7 +2,6 @@
 id: 5d7925379e2a488f333e2d43
 title: Part 80
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-081.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-081.md
index f77917100e1..12993e6ec14 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-081.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-081.md
@@ -2,7 +2,6 @@
 id: 5d7925379000785f6d8d9af3
 title: Part 81
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-082.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-082.md
index 9a140c09e07..f5cca1c0383 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-082.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-082.md
@@ -2,7 +2,6 @@
 id: 5d79253791391b0acddd0ac5
 title: Part 82
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-083.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-083.md
index 0f7caf9d18e..c314d8ee44f 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-083.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-083.md
@@ -2,7 +2,6 @@
 id: 5d7925373104ae5ae83f20a5
 title: Part 83
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-084.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-084.md
index 26e57618c45..297bf293bfa 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-084.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-084.md
@@ -2,7 +2,6 @@
 id: 5d7925373b7127cfaeb50c26
 title: Part 84
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-085.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-085.md
index 58decedc507..3b888074cb1 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-085.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-085.md
@@ -2,7 +2,6 @@
 id: 5d792537cb3a5cd6baca5e1a
 title: Part 85
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-086.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-086.md
index ef8a541eff0..b5828ffb8e7 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-086.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-086.md
@@ -2,7 +2,6 @@
 id: 5d79253742f3313d55db981f
 title: Part 86
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-087.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-087.md
index 198f2b815e7..5892ca0c815 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-087.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-087.md
@@ -2,7 +2,6 @@
 id: 5d7925379e0180a438ce7f95
 title: Part 87
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-088.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-088.md
index dadec6e41ba..f4968a5d884 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-088.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-088.md
@@ -2,7 +2,6 @@
 id: 5d792537c80984dfa5501b96
 title: Part 88
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-089.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-089.md
index e7bb48e72fd..8ad35ac5eb5 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-089.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-089.md
@@ -2,7 +2,6 @@
 id: 5d7925377b54d8a76efb5657
 title: Part 89
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-090.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-090.md
index b3bccabcba6..da9b7807e14 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-090.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-090.md
@@ -2,7 +2,6 @@
 id: 5d7925371398513549bb6395
 title: Part 90
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-091.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-091.md
index d1b754a17e2..946f5356e49 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-091.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-091.md
@@ -2,7 +2,6 @@
 id: 5d792537ea3eaf302bf2d359
 title: Part 91
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-092.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-092.md
index 1de0f9afe93..f5b2646b79b 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-092.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-092.md
@@ -2,7 +2,6 @@
 id: 5d792537533b1c7843bfd029
 title: Part 92
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-093.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-093.md
index 4b7b7be5c34..cf21b61e64b 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-093.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-093.md
@@ -2,7 +2,6 @@
 id: 5d792537dc0fe84345d4f19e
 title: Part 93
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-094.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-094.md
index 31f435ed605..852a740d6bc 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-094.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-094.md
@@ -2,7 +2,6 @@
 id: 5d792537b6cadae0f4b0cda1
 title: Part 94
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-095.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-095.md
index 466cc8e64b1..8a5215c6aa4 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-095.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-095.md
@@ -2,7 +2,6 @@
 id: 5d79253770083fb730c93a93
 title: Part 95
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-096.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-096.md
index 1f422f41cda..ac941c56daf 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-096.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-096.md
@@ -2,7 +2,6 @@
 id: 5d792537fef76b226b63b93b
 title: Part 96
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-097.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-097.md
index 5d86d80e5f1..cda4c3c8b21 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-097.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-097.md
@@ -2,7 +2,6 @@
 id: 5d79253760fca25ccbbd8990
 title: Part 97
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-098.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-098.md
index 8adac0c6825..77fa1cc0a5e 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-098.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-098.md
@@ -2,7 +2,6 @@
 id: 5d7925374321824cba309875
 title: Part 98
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-099.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-099.md
index d988782dc1d..6281d3ba418 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-099.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-099.md
@@ -2,7 +2,6 @@
 id: 5d7925381e8565a5c50ba7f1
 title: Part 99
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-100.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-100.md
index dc36fb8d58b..24b823df860 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-100.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-100.md
@@ -2,7 +2,6 @@
 id: 5d7925383f1b77db7f1ff59e
 title: Part 100
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-101.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-101.md
index c93ced393eb..6f4ec15c6d8 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-101.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-101.md
@@ -2,7 +2,6 @@
 id: 5d792538de9fa3f298bcd5f6
 title: Part 101
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-102.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-102.md
index ae9a9baec70..0d2e29b622b 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-102.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-102.md
@@ -2,7 +2,6 @@
 id: 5d7925385b74f69642e1fea5
 title: Part 102
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-103.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-103.md
index e9b7bcd0dbf..c1d4721ad60 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-103.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-103.md
@@ -2,7 +2,6 @@
 id: 5d7925380ea76d55b2c97d7b
 title: Part 103
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-104.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-104.md
index ca36982596d..e958a587424 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-104.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-104.md
@@ -2,7 +2,6 @@
 id: 5d792538be4fe331f1a6c008
 title: Part 104
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-105.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-105.md
index 80759ce82cc..78bf1ab8562 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-105.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-105.md
@@ -2,7 +2,6 @@
 id: 5d792538d169f33142175b95
 title: Part 105
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-106.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-106.md
index 0f6edd42e72..f68c0754ad7 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-106.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-106.md
@@ -2,7 +2,6 @@
 id: 5d792538e48b5a2c6e5bbe12
 title: Part 106
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-107.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-107.md
index 73772bce386..44863a335e1 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-107.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-107.md
@@ -2,7 +2,6 @@
 id: 5d7925387f3e9da5ec856dbe
 title: Part 107
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-108.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-108.md
index 1fc298576de..0df48031097 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-108.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-108.md
@@ -2,7 +2,6 @@
 id: 5d79253824ae9b4a6e6f3108
 title: Part 108
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-109.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-109.md
index f7aa5e876f8..7773443ac1c 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-109.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-109.md
@@ -2,7 +2,6 @@
 id: 5d7925383f122a279f4c54ad
 title: Part 109
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-110.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-110.md
index 20d407dd2c4..0ace412bf72 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-110.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-110.md
@@ -2,7 +2,6 @@
 id: 5d7925387b682e962f209269
 title: Part 110
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-111.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-111.md
index 493ab3b18cf..4f4bd2ef7a7 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-111.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-111.md
@@ -2,7 +2,6 @@
 id: 5d792538de774217b173288e
 title: Part 111
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-112.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-112.md
index 7ea81ec9867..d06a74c4938 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-112.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-112.md
@@ -2,7 +2,6 @@
 id: 5d79253891d93585323d1f3c
 title: Part 112
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-113.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-113.md
index 4a830cc3d2a..128f1fd2c1c 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-113.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-113.md
@@ -2,7 +2,6 @@
 id: 5d7925384e34e944ecb4612d
 title: Part 113
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-114.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-114.md
index 6daaae7ace6..23a5f9f39be 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-114.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-114.md
@@ -2,7 +2,6 @@
 id: 5d792538631844ad0bdfb4c3
 title: Part 114
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-115.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-115.md
index 867398ef81f..d93a81821ae 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-115.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-115.md
@@ -2,7 +2,6 @@
 id: 5d792538e2a8d20cc580d481
 title: Part 115
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-116.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-116.md
index 7043316c404..7f3e4d55354 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-116.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-116.md
@@ -2,7 +2,6 @@
 id: 5d792538f5004390d6678554
 title: Part 116
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-117.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-117.md
index ad3548b8798..ed7581f7ec5 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-117.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-117.md
@@ -2,7 +2,6 @@
 id: 5d792539dd4fd4c96fd85f7e
 title: Part 117
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-118.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-118.md
index 8cc06bb7a0d..3e05c42ee3b 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-118.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-118.md
@@ -2,7 +2,6 @@
 id: 5d79253949802f8587c8bbd3
 title: Part 118
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-119.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-119.md
index 91305107906..49c6d83e25e 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-119.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-119.md
@@ -2,7 +2,6 @@
 id: 5d7925395888767e9304c082
 title: Part 119
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-120.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-120.md
index 7c58d2e0323..753fa866346 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-120.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-120.md
@@ -2,7 +2,6 @@
 id: 5d7925393b30099e37a34668
 title: Part 120
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-121.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-121.md
index 0cc6c96bd31..75704cc0d37 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-121.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-121.md
@@ -2,7 +2,6 @@
 id: 5d7925398157757b23730fdd
 title: Part 121
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-122.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-122.md
index b5cd7f3afa9..07b9d12c554 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-122.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-122.md
@@ -2,7 +2,6 @@
 id: 5d792539de4b9ac14dd40409
 title: Part 122
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-123.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-123.md
index 11aaf6f8537..2f415a46294 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-123.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-123.md
@@ -2,7 +2,6 @@
 id: 5d792539534f1bf991bb987f
 title: Part 123
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-124.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-124.md
index b8aa99dde69..a0dfc4334f6 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-124.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-124.md
@@ -2,7 +2,6 @@
 id: 5d7925394089b762f93ffa52
 title: Part 124
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-125.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-125.md
index 2e45d5e7918..801d16a7d60 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-125.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-125.md
@@ -2,7 +2,6 @@
 id: 5d792539ec758d45a6900173
 title: Part 125
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-126.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-126.md
index 47e854b21ac..d2e82a23eaa 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-126.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-126.md
@@ -2,7 +2,6 @@
 id: 5d7925398d525f61a9ff3a79
 title: Part 126
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-127.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-127.md
index 59be6ea3d14..3db97046d3a 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-127.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-127.md
@@ -2,7 +2,6 @@
 id: 5d792539a222f385c5c17d2b
 title: Part 127
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-128.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-128.md
index 9bbea0cb032..3a6b9a6c122 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-128.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-128.md
@@ -2,7 +2,6 @@
 id: 5d7925398a7184b41b12a0e0
 title: Part 128
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-129.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-129.md
index 5d308d33cef..a25e6206310 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-129.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-129.md
@@ -2,7 +2,6 @@
 id: 5d7925399afb905c34730a75
 title: Part 129
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-130.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-130.md
index 648ec21e3f9..54322c57b6b 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-130.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-130.md
@@ -2,7 +2,6 @@
 id: 5d792539728d1aa7788e2c9b
 title: Part 130
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-131.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-131.md
index c9cec5f17a4..cf2f7c07297 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-131.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-131.md
@@ -2,7 +2,6 @@
 id: 5d79253939434a2724c0ec41
 title: Part 131
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-132.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-132.md
index 895378cdac2..9810bc7f413 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-132.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-132.md
@@ -2,7 +2,6 @@
 id: 5d792539b9e1d3c54d8fe94a
 title: Part 132
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-133.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-133.md
index 21b504622f4..e8aa578bcf9 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-133.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-133.md
@@ -2,7 +2,6 @@
 id: 5d792539b2e0bd8f9e8213e4
 title: Part 133
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-134.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-134.md
index 5256bdb10a6..af75e68b4be 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-134.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-134.md
@@ -2,7 +2,6 @@
 id: 5d792539239148965a1a59a5
 title: Part 134
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-135.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-135.md
index ddc4f23e30f..13f0fe95f7c 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-135.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-135.md
@@ -2,7 +2,6 @@
 id: 5d792539e1446045d0df6d28
 title: Part 135
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-136.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-136.md
index 3c38ae4528f..6f54719f015 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-136.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-136.md
@@ -2,7 +2,6 @@
 id: 5d79253a2febbb77098730b9
 title: Part 136
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-137.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-137.md
index 37e1a7c0f71..6067f97f8d2 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-137.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-137.md
@@ -2,7 +2,6 @@
 id: 5d79253a98bd9fdf7ce68d0a
 title: Part 137
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-138.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-138.md
index 30ece6687b6..4da10dd539b 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-138.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-138.md
@@ -2,7 +2,6 @@
 id: 5d79253a1e9abf29de64c177
 title: Part 138
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-139.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-139.md
index 91cba019ef0..bdbc0f43fa7 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-139.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-139.md
@@ -2,7 +2,6 @@
 id: 5d79253a8b29d78984369e4b
 title: Part 139
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-140.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-140.md
index 23b99696d2c..3c0d24efbc9 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-140.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-140.md
@@ -2,7 +2,6 @@
 id: 5d79253ad297a31cbe073718
 title: Part 140
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-141.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-141.md
index 7a7dcc66d98..d415511b5dc 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-141.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming-spreadsheet/part-141.md
@@ -2,7 +2,6 @@
 id: 5dc10b8b93704f41d279eb5b
 title: Part 141
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-001.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-001.md
index 8b43d877b79..af5432e6351 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-001.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-001.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44d9a
 title: Part 1
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-002.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-002.md
index 4497887fa24..5d0f71d4134 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-002.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-002.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44d9b
 title: Part 2
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-003.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-003.md
index 203cb367f1d..f6d61280108 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-003.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-003.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44d9c
 title: Part 3
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-004.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-004.md
index 90571d3440e..a29b678ec11 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-004.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-004.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44d9d
 title: Part 4
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-005.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-005.md
index d7d5670c313..81b80624864 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-005.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-005.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44d9e
 title: Part 5
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-006.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-006.md
index 178609e051b..d41de4a78ef 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-006.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-006.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44d9f
 title: Part 6
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-007.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-007.md
index 293dc93499d..c788240b5b1 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-007.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-007.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44da0
 title: Part 7
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-008.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-008.md
index 5c11a26f86e..c5095b8569a 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-008.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-008.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44da1
 title: Part 8
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-009.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-009.md
index 1f969a63383..aa9916b0d0f 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-009.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-009.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44da2
 title: Part 9
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-010.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-010.md
index fce609c69ea..424bd2977d8 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-010.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-010.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44da3
 title: Part 10
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-011.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-011.md
index 855ee54a5ca..54d4ca591ae 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-011.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-011.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44da4
 title: Part 11
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-012.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-012.md
index 1ec9f885000..4578ef13e08 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-012.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-012.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44da5
 title: Part 12
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-013.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-013.md
index e724677e842..85e59cb6b22 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-013.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-013.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44da6
 title: Part 13
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-014.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-014.md
index 7de04c13cc8..44baaf80467 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-014.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-014.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44da7
 title: Part 14
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-015.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-015.md
index 19c357a1d0a..a7f6f8523f6 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-015.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-015.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44da8
 title: Part 15
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-016.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-016.md
index bbd7a04a507..37264d19a56 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-016.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-016.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44da9
 title: Part 16
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-017.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-017.md
index 06d55391555..292942fa1b0 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-017.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-017.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44daa
 title: Part 17
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-018.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-018.md
index b85b429537a..977594513fe 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-018.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-018.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dab
 title: Part 18
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-019.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-019.md
index e12f038e395..d0141b6453e 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-019.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-019.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dac
 title: Part 19
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-020.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-020.md
index 8061d9e79a6..ed4d4590d0a 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-020.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-020.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dad
 title: Part 20
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-021.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-021.md
index 8b72ddd1cbe..f8cf697c6f7 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-021.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-021.md
@@ -2,7 +2,6 @@
 id: 5e302e80e003129199103c78
 title: Part 21
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-022.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-022.md
index 22723164c61..a953c1a16f8 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-022.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-022.md
@@ -2,7 +2,6 @@
 id: 5e302e8ce003129199103c79
 title: Part 22
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-023.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-023.md
index 9ea6f066907..d03b04977ef 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-023.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-023.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dae
 title: Part 23
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-024.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-024.md
index 7bf71c91168..872d81f802e 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-024.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-024.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44daf
 title: Part 24
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-025.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-025.md
index 93354b2844a..9d23e88a6fd 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-025.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-025.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44db0
 title: Part 25
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-026.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-026.md
index e70d2c2f478..da5b5bfee41 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-026.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-026.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44db1
 title: Part 26
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-027.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-027.md
index 9e1cc6347c5..f86a4ee9ca4 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-027.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-027.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44db2
 title: Part 27
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-028.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-028.md
index 247c9c5953f..3c081334b91 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-028.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-028.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44db3
 title: Part 28
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-029.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-029.md
index 6bf25bb838b..65b9040a25c 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-029.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-029.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44db4
 title: Part 29
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-030.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-030.md
index fc387924dcf..61f73c16f3c 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-030.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-030.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44db5
 title: Part 30
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-031.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-031.md
index 9cdeb78bfc6..6067b117e24 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-031.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-031.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44db6
 title: Part 31
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-032.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-032.md
index 20e2ba3868c..1b25d52d320 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-032.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-032.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44db7
 title: Part 32
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-033.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-033.md
index 647dc253ef5..2eb541ba485 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-033.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-033.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44db8
 title: Part 33
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-034.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-034.md
index 3fc9697a8dd..7de153743d7 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-034.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-034.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44db9
 title: Part 34
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-035.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-035.md
index 44ba17d82fc..77f936cfdb2 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-035.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-035.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dba
 title: Part 35
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-036.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-036.md
index 101a003c3e8..b703847d2ab 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-036.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-036.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dbb
 title: Part 36
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-037.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-037.md
index 49e5ee9a8e8..2274be18a8f 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-037.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-037.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dbc
 title: Part 37
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-038.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-038.md
index bc068cc3bd2..647befbd796 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-038.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-038.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dbd
 title: Part 38
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-039.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-039.md
index 33a37ec4973..f5bb73b8607 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-039.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-039.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dbe
 title: Part 39
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-040.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-040.md
index a2c749f2afe..9cdbd4a79c1 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-040.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-040.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dbf
 title: Part 40
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-041.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-041.md
index e7e71fac737..e06e1ba1550 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-041.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-041.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dc0
 title: Part 41
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-042.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-042.md
index 165d0ac78e1..e2ea9b4940f 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-042.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-042.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dc1
 title: Part 42
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-043.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-043.md
index 05516587a31..76612ee5a71 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-043.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-043.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dc2
 title: Part 43
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-044.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-044.md
index bc24b91d1be..5e754aacd59 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-044.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-044.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dc3
 title: Part 44
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-045.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-045.md
index 992478467ba..f3b1c451cfe 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-045.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-045.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dc4
 title: Part 45
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-046.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-046.md
index b173e934028..0c09060b4f3 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-046.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-046.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dc5
 title: Part 46
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-047.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-047.md
index 661eb51ca24..79528553aa0 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-047.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-047.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dc6
 title: Part 47
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-048.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-048.md
index fff944b5913..cc53a2b3936 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-048.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-048.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dc7
 title: Part 48
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-049.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-049.md
index 245dd9362d5..379f2bf29bf 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-049.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-049.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dc8
 title: Part 49
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-050.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-050.md
index 60dbc89cdea..e54fedd9c56 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-050.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-050.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dc9
 title: Part 50
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-051.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-051.md
index 466e2326010..a29bac12eeb 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-051.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-051.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dca
 title: Part 51
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-052.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-052.md
index 0a0434e0f58..8d3d1924a8e 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-052.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-052.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dcb
 title: Part 52
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-053.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-053.md
index f6f8c818c9a..9bde52268a0 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-053.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-053.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dcc
 title: Part 53
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-054.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-054.md
index 569b262b9ca..bae53405221 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-054.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-054.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dcd
 title: Part 54
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-055.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-055.md
index bd541b5e180..616dd912fd5 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-055.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-055.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dce
 title: Part 55
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-056.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-056.md
index 7605ece56ee..fe6d8a11bd9 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-056.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-056.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dcf
 title: Part 56
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-057.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-057.md
index c10350205ed..aee2728a7d6 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-057.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-057.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dd0
 title: Part 57
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-058.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-058.md
index a6e0a637d72..61076ddaf15 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-058.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-058.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dd1
 title: Part 58
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-059.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-059.md
index 96e916f4715..c28b2c60a7b 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-059.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-059.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dd2
 title: Part 59
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-060.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-060.md
index f44b5c39048..257511aa3d5 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-060.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-060.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dd3
 title: Part 60
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-061.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-061.md
index 09eb24004c7..a611c59100f 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-061.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-061.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dd4
 title: Part 61
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-062.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-062.md
index 7d150e84809..d47e090213a 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-062.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-062.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dd5
 title: Part 62
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-063.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-063.md
index 46b9c3b687f..9c635fc0f21 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-063.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-063.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dd6
 title: Part 63
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-064.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-064.md
index 969fc5dd04c..0a8d79aec99 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-064.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-064.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dd7
 title: Part 64
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-065.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-065.md
index 3643f1684db..7e3ecfd6647 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-065.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-065.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dd8
 title: Part 65
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-066.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-066.md
index aca8651cca5..f8dc8e30440 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-066.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-066.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dd9
 title: Part 66
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-067.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-067.md
index 82e799e259d..1eb479802fd 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-067.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-067.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dda
 title: Part 67
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-068.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-068.md
index d7a21796877..89b3d5455a9 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-068.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-068.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44ddb
 title: Part 68
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-069.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-069.md
index e305d6d8c88..6232d9d4df2 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-069.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-069.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44ddc
 title: Part 69
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-070.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-070.md
index 2efd5e3189e..f2fdb8e659e 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-070.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-070.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44ddd
 title: Part 70
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-071.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-071.md
index c72866a981b..65ae70766c8 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-071.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-071.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44dde
 title: Part 71
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-072.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-072.md
index 46dd199ec28..7265f4fd17e 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-072.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-072.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44ddf
 title: Part 72
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-073.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-073.md
index 43ed0b38c6e..51a03757b22 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-073.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-073.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44de0
 title: Part 73
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-074.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-074.md
index bf5da016318..04b39c730db 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-074.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-074.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44de1
 title: Part 74
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-075.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-075.md
index 5e79c5fd8f8..9c956fd5253 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-075.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-075.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44de2
 title: Part 75
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-076.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-076.md
index 2b6f1ce6b55..6523a5d053f 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-076.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/intermediate-javascript-calorie-counter/part-076.md
@@ -2,7 +2,6 @@
 id: 5ddb965c65d27e1512d44de3
 title: Part 76
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-001.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-001.md
index a2f2c8f9ad3..551641d09c9 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-001.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-001.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9de
 title: Part 1
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-002.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-002.md
index aa775e28acd..9f29041abdb 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-002.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-002.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9df
 title: Part 2
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-003.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-003.md
index b104b8837b9..867ce4cabb1 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-003.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-003.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9e0
 title: Part 3
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-004.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-004.md
index 6c4b0ddb45c..8a25c848921 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-004.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-004.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9e1
 title: Part 4
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-005.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-005.md
index 0c49803db61..7da62dd19aa 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-005.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-005.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9e2
 title: Part 5
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-006.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-006.md
index 14f6484c435..0f37e97e47c 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-006.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-006.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9e3
 title: Part 6
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-007.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-007.md
index 77549e144ff..18bef2a8734 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-007.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-007.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9e4
 title: Part 7
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-008.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-008.md
index 76eb24c9eb4..046f7ee8dfb 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-008.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-008.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9e5
 title: Part 8
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-009.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-009.md
index 86e6ff359df..95d6ee65fe5 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-009.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-009.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9e6
 title: Part 9
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-010.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-010.md
index 7fef36f26ea..79ac73bb756 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-010.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-010.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9e7
 title: Part 10
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-011.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-011.md
index 69ef41f7ee3..1569f795681 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-011.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-011.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9e8
 title: Part 11
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-012.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-012.md
index 994581c2aaa..e575e97bcb4 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-012.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-012.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9e9
 title: Part 12
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-013.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-013.md
index 2c6832a110b..01fcada4bb5 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-013.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-013.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9ea
 title: Part 13
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-014.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-014.md
index 893fc93453f..9aa7486b838 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-014.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-014.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9eb
 title: Part 14
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-015.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-015.md
index 43a616536f6..776946ff0aa 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-015.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-015.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9ec
 title: Part 15
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-016.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-016.md
index c5aceb20e9c..37162e58c10 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-016.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-016.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9ed
 title: Part 16
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-017.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-017.md
index 050b875e660..7583c0be80b 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-017.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-017.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9ee
 title: Part 17
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-018.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-018.md
index 0d51a8e0d24..8c11d7666c6 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-018.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-018.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9ef
 title: Part 18
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-019.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-019.md
index 86d00b4902b..bb36af861d9 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-019.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-019.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9f0
 title: Part 19
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-020.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-020.md
index 87b2d8c94b2..03026a7f8db 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-020.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-020.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9f1
 title: Part 20
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-021.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-021.md
index 5e6ae0f6c0f..845624ebecf 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-021.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-021.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9f2
 title: Part 21
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-022.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-022.md
index e2323430e53..2654f5b59e6 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-022.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-022.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9f3
 title: Part 22
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-023.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-023.md
index c60b27383d3..42a68d3ed1b 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-023.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-023.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9f4
 title: Part 23
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-024.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-024.md
index 936daa15c29..afac55cca5e 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-024.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-024.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9f5
 title: Part 24
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-025.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-025.md
index 498a9968968..040de8e8294 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-025.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-025.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9f6
 title: Part 25
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-026.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-026.md
index 0ae986c332c..94ca9230087 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-026.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-026.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9f7
 title: Part 26
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-027.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-027.md
index b85e5b44e92..3d9370d3b41 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-027.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-027.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9f8
 title: Part 27
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-028.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-028.md
index 41bf37e9661..7250d58ad8f 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-028.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-028.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9f9
 title: Part 28
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-029.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-029.md
index 6b07df1846d..012db7c7209 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-029.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-029.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9fa
 title: Part 29
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-030.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-030.md
index 9b024491a83..bf9c2eb9a14 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-030.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-030.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9fb
 title: Part 30
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-031.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-031.md
index 5c03db5358b..9d09239f49e 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-031.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-031.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9fc
 title: Part 31
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-032.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-032.md
index 988d05fae52..b84c18c7390 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-032.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-032.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9fd
 title: Part 32
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-033.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-033.md
index 0765adb7035..4afd053aa75 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-033.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-033.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9fe
 title: Part 33
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-034.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-034.md
index 80826340d57..68b3878f1f0 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-034.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-034.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1c9ff
 title: Part 34
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-035.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-035.md
index 8c895ccd2d7..30e2cfb487a 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-035.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-035.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca00
 title: Part 35
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-036.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-036.md
index 86cc60c199c..ea812500626 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-036.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-036.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca01
 title: Part 36
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-037.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-037.md
index 8213c053f66..22a0ef03a3c 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-037.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-037.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca02
 title: Part 37
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-038.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-038.md
index 7c64ad929a6..afaf5314bee 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-038.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-038.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca03
 title: Part 38
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-039.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-039.md
index 6b5f99a911b..aa93068ca7a 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-039.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-039.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca04
 title: Part 39
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-040.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-040.md
index 6b3f9eab278..d3deeefdad3 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-040.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-040.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca05
 title: Part 40
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-041.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-041.md
index eec250cec69..5289fe0fb48 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-041.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-041.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca06
 title: Part 41
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-042.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-042.md
index aca7b560b86..e34f44b61c2 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-042.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-042.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca07
 title: Part 42
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-043.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-043.md
index 3f9b8a8e042..e34ca5f8c6b 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-043.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-043.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca08
 title: Part 43
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-044.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-044.md
index 756a65efa46..e3b6b7a7900 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-044.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-044.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca09
 title: Part 44
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-045.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-045.md
index bfe61509e15..86002aada6b 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-045.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-045.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca0a
 title: Part 45
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-046.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-046.md
index 4830f0a94f3..5f39bff5b63 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-046.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-046.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca0b
 title: Part 46
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-047.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-047.md
index 33f722a8ba6..91fce2f79e7 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-047.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-047.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca0c
 title: Part 47
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-048.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-048.md
index 363a49fc851..5cfdb9f0bf4 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-048.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-048.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca0d
 title: Part 48
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-049.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-049.md
index 82ed962743a..9cb69d67094 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-049.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-049.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca0e
 title: Part 49
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-050.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-050.md
index 6b9f70d1b02..4473110d250 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-050.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-050.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca0f
 title: Part 50
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-051.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-051.md
index d9cadb80fdf..33e0e57caf3 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-051.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-051.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca10
 title: Part 51
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-052.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-052.md
index bbb4b56cfdb..26b9905d71e 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-052.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-052.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca11
 title: Part 52
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-053.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-053.md
index a2d320908eb..b4f408a396f 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-053.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-053.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca12
 title: Part 53
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-054.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-054.md
index 5494e8e0e5b..380b9c376a6 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-054.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-054.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca13
 title: Part 54
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-055.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-055.md
index ed6a5b396f0..b1263f77b08 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-055.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-055.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca14
 title: Part 55
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-056.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-056.md
index 9959f8ac8dd..d713f641b30 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-056.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-056.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca15
 title: Part 56
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-057.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-057.md
index 06f974f50e7..b3233a60845 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-057.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-057.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca16
 title: Part 57
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-058.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-058.md
index 290b45f8889..1a173ae98fa 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-058.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-058.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca17
 title: Part 58
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-059.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-059.md
index 650e2165750..4d018c89a49 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-059.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-059.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca18
 title: Part 59
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-060.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-060.md
index 6a9393668c0..23938f74209 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-060.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-060.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca19
 title: Part 60
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-061.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-061.md
index 8202310326a..2bb1f7733ae 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-061.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-061.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca1a
 title: Part 61
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-062.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-062.md
index 311e05c76da..590d54b55cd 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-062.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-062.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca1b
 title: Part 62
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-063.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-063.md
index 3c9c7ecce44..4e341398710 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-063.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-063.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca1c
 title: Part 63
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-064.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-064.md
index a835c2ea93a..20446a43161 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-064.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-064.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca1d
 title: Part 64
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-065.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-065.md
index a988dd8b411..7bd95c5751b 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-065.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-065.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca1e
 title: Part 65
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-066.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-066.md
index 493f5199654..0a188b0b0bc 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-066.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-066.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca1f
 title: Part 66
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-067.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-067.md
index 990785d5288..c75e35eb673 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-067.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-067.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca20
 title: Part 67
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-068.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-068.md
index d2afd078cb7..558db06bb74 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-068.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-068.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca21
 title: Part 68
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-069.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-069.md
index 27eee25d80f..56df0938e11 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-069.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-069.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca22
 title: Part 69
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-070.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-070.md
index acb3f26ba62..241630bd74e 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-070.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-070.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca23
 title: Part 70
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-071.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-071.md
index 2e394860795..b6f382716e0 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-071.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-071.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca24
 title: Part 71
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-072.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-072.md
index 32bf53a6e00..de7578db76a 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-072.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-072.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca25
 title: Part 72
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-073.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-073.md
index cb209cbced0..56d23dc8c5b 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-073.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-073.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca26
 title: Part 73
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-074.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-074.md
index 433d6b40e2c..c5d35c0e14f 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-074.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-074.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca27
 title: Part 74
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-075.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-075.md
index e4773d5a439..b2ce8ae50d0 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-075.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-075.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca28
 title: Part 75
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-076.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-076.md
index 791a47c6695..b3c30d705d9 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-076.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-076.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca29
 title: Part 76
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-077.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-077.md
index 8298916c5b2..95214cc6d3f 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-077.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-077.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca2a
 title: Part 77
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-078.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-078.md
index 7a474109cf8..afaf421aa55 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-078.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-078.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca2b
 title: Part 78
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-079.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-079.md
index 57732808be6..15a92c63618 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-079.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-079.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca2c
 title: Part 79
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-080.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-080.md
index 934b5e69689..29231893467 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-080.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-080.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca2d
 title: Part 80
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-081.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-081.md
index bd881d74aa2..b16c58ac16e 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-081.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-081.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca2e
 title: Part 81
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-082.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-082.md
index 45571df810c..db055023c20 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-082.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-082.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca2f
 title: Part 82
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-083.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-083.md
index 5a389481d96..c55069509cf 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-083.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-083.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca30
 title: Part 83
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-084.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-084.md
index f6c2ed9aeee..41ef4513043 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-084.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-084.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca31
 title: Part 84
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-085.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-085.md
index 6e77e70b136..5de601c5d97 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-085.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-085.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca32
 title: Part 85
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-086.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-086.md
index fb8b71091fe..545d3d926dd 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-086.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-086.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca33
 title: Part 86
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-087.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-087.md
index 799b31bc09a..eacc20cc226 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-087.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-087.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca34
 title: Part 87
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-088.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-088.md
index 012ae25abf3..a1c0d0b37de 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-088.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-088.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca35
 title: Part 88
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-089.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-089.md
index c44752790b5..edf59287b70 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-089.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-089.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca36
 title: Part 89
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-090.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-090.md
index 330b054c81e..a6f1a1f2e72 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-090.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-090.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca37
 title: Part 90
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-091.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-091.md
index eb4717e88d1..a97e4528b20 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-091.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-091.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca38
 title: Part 91
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-092.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-092.md
index e4b037f1d0b..a1e3ede279d 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-092.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-092.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca39
 title: Part 92
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-093.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-093.md
index 7a0f65dbf9a..83b0c216e5e 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-093.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-093.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca3a
 title: Part 93
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-094.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-094.md
index b22c2370d5e..b848b642b63 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-094.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-094.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca3b
 title: Part 94
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-095.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-095.md
index 9c3f5bafef4..bdab29986c2 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-095.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-095.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca3c
 title: Part 95
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-096.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-096.md
index 19afacec5e4..4e90cda553f 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-096.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-096.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca3d
 title: Part 96
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-097.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-097.md
index 511567906a8..bc2dd9d4b5f 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-097.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-097.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca3e
 title: Part 97
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-098.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-098.md
index 9d4af138d5f..8ddb65a2448 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-098.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-098.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca3f
 title: Part 98
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-099.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-099.md
index eceea6efbbb..a039fa1e526 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-099.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-099.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca40
 title: Part 99
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-100.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-100.md
index dcc4632a4b1..662fd678955 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-100.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-100.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca41
 title: Part 100
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-101.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-101.md
index 18d5b5ff92f..9c5fd81e4c4 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-101.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-101.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca42
 title: Part 101
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-102.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-102.md
index f1b26009d95..72e74957822 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-102.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-102.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca43
 title: Part 102
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-103.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-103.md
index db8d7a697b2..7095d59a490 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-103.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-103.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca44
 title: Part 103
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-104.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-104.md
index b134ce9ae10..b311b3fc317 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-104.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-104.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca47
 title: Part 104
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-105.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-105.md
index 2b61eaf64ac..5ba7db6f3a7 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-105.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-105.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca48
 title: Part 105
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-106.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-106.md
index af37ddd7f7b..8f0af628bdd 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-106.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-106.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca49
 title: Part 106
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-107.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-107.md
index 782ea3b4c4b..2d97d3138d8 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-107.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-107.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca4a
 title: Part 107
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-108.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-108.md
index 625c7c47ad5..dbb6b726e82 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-108.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-108.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca4b
 title: Part 108
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-109.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-109.md
index 4fe3f03a66a..0d4dfea3cfe 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-109.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-109.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca4c
 title: Part 109
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-110.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-110.md
index 067fcd175f9..fa1439f8783 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-110.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-110.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca4d
 title: Part 110
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-111.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-111.md
index 106c71a38f8..266b660ed4c 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-111.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-111.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca4e
 title: Part 111
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-112.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-112.md
index 9e9b8cd74e5..46b77d0fe3b 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-112.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-112.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca4f
 title: Part 112
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-113.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-113.md
index 48245b6461e..97f31121c7b 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-113.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-113.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca50
 title: Part 113
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-114.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-114.md
index bcfa7059b93..e13086c5c16 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-114.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-114.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca51
 title: Part 114
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-115.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-115.md
index 9b1562c3599..7b9b43a76cd 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-115.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-115.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca52
 title: Part 115
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-116.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-116.md
index d945541d658..dae2749f022 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-116.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-116.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca53
 title: Part 116
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-117.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-117.md
index c98f02ac28b..3d9b428edae 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-117.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-117.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca54
 title: Part 117
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-118.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-118.md
index 20a41b2ca00..0e861734097 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-118.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-118.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca55
 title: Part 118
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-119.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-119.md
index 83f873d9d99..aed75517efd 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-119.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-119.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca56
 title: Part 119
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-120.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-120.md
index dc3fa195d6d..a5b23178c5c 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-120.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-120.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca57
 title: Part 120
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-121.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-121.md
index c3c3152a0c5..d3c5a96e4e1 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-121.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-121.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca58
 title: Part 121
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-122.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-122.md
index 4e92a3c0332..a0f6cf8b52c 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-122.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-122.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca59
 title: Part 122
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-123.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-123.md
index 78f1bc82532..5ea36821c0f 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-123.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-123.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca5a
 title: Part 123
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-124.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-124.md
index 8768b67783e..d3b941efdf7 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-124.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-124.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca5b
 title: Part 124
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-125.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-125.md
index a4de8519ac9..f37cc13497b 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-125.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-125.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca5c
 title: Part 125
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-126.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-126.md
index ec329ce9888..def1888c7b6 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-126.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-126.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca5d
 title: Part 126
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-127.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-127.md
index 9639cf0ac3d..e36886812a8 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-127.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-127.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca5e
 title: Part 127
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-128.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-128.md
index 13f1b941351..57f44eeb8d3 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-128.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-128.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca5f
 title: Part 128
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-129.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-129.md
index 257d8ff132e..b3b96a99dfc 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-129.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-129.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca60
 title: Part 129
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-130.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-130.md
index 962177f26ca..114a63ca918 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-130.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-130.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca61
 title: Part 130
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-131.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-131.md
index 6c533b849f8..7661109c15c 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-131.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-131.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca62
 title: Part 131
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-132.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-132.md
index 94735988264..8ec1ade3923 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-132.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-132.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca63
 title: Part 132
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-133.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-133.md
index 1b4f7f22f2d..a131f031ce3 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-133.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-133.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca64
 title: Part 133
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-134.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-134.md
index 8b846d02247..a9ca09ece5e 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-134.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-134.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca65
 title: Part 134
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-135.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-135.md
index 480e4634c02..6d977b01ab6 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-135.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-135.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca66
 title: Part 135
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-136.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-136.md
index 77f3c9cabe2..cdbfa786333 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-136.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-136.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca67
 title: Part 136
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-137.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-137.md
index af5849957b8..624e0942339 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-137.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-137.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca68
 title: Part 137
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-138.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-138.md
index 08bfa602220..467e57ce10a 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-138.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-138.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca6a
 title: Part 138
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-139.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-139.md
index 5a4da2e619c..ebc61172541 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-139.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-139.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca6b
 title: Part 139
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-140.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-140.md
index 386dbfbae29..787009557f7 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-140.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-140.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca6c
 title: Part 140
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-141.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-141.md
index 405debbe00e..14c195b24b0 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-141.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-141.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca6d
 title: Part 141
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-142.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-142.md
index baa1c7d4b0a..93eb6c02f7c 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-142.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-142.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca6e
 title: Part 142
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-143.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-143.md
index 5b1c86f484b..bb475742e79 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-143.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-143.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca6f
 title: Part 143
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-144.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-144.md
index c0a93caada5..90b5c7889fa 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-144.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-144.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca70
 title: Part 144
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-145.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-145.md
index 19c34d850ac..db4d07d0922 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-145.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-145.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca71
 title: Part 145
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-146.md b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-146.md
index 4d3d8ae5283..281d7bdff20 100644
--- a/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-146.md
+++ b/curriculum/challenges/english/04-data-visualization/d3-dashboard/part-146.md
@@ -2,7 +2,6 @@
 id: 5d8a4cfbe6b6180ed9a1ca72
 title: Part 146
 challengeType: 0
-isHidden: true
 ---
 
 ## Description
diff --git a/tools/challenge-helper-scripts/utils.js b/tools/challenge-helper-scripts/utils.js
index d31d58e8c4d..b7076fbd82e 100644
--- a/tools/challenge-helper-scripts/utils.js
+++ b/tools/challenge-helper-scripts/utils.js
@@ -39,7 +39,6 @@ ${challengeSeed.trim()}
 id: ${ObjectID.generate()}
 title: Part ${stepNum}
 challengeType: 0
-isHidden: true
 ---
 
 ## Description