diff --git a/curriculum/challenges/chinese/09-certificates/apis-and-microservices-certificate/apis-and-microservices-certificate.chinese.md b/curriculum/challenges/chinese/12-certificates/apis-and-microservices-certificate/apis-and-microservices-certificate.chinese.md
similarity index 85%
rename from curriculum/challenges/chinese/09-certificates/apis-and-microservices-certificate/apis-and-microservices-certificate.chinese.md
rename to curriculum/challenges/chinese/12-certificates/apis-and-microservices-certificate/apis-and-microservices-certificate.chinese.md
index 633b9bce7e..3071b655bb 100644
--- a/curriculum/challenges/chinese/09-certificates/apis-and-microservices-certificate/apis-and-microservices-certificate.chinese.md
+++ b/curriculum/challenges/chinese/12-certificates/apis-and-microservices-certificate/apis-and-microservices-certificate.chinese.md
@@ -1,18 +1,20 @@
 ---
 id: 561add10cb82ac38a17523bc
-title: API's and Microservices Certificate
+title: APIs and Microservices Certificate
 challengeType: 7
+isHidden: false
 isPrivate: true
-videoUrl: ''
 localeTitle: API和微服务证书
 ---
 
 ## Description
-<section id="description">
+<section id='description'>
+
 </section>
 
 ## Instructions
-<section id="instructions">
+<section id='instructions'>
+
 </section>
 
 ## Tests
@@ -46,4 +48,5 @@ tests:
 ```js
 // solution required
 ```
+
 </section>
diff --git a/curriculum/challenges/chinese/12-certificates/data-analysis-with-python-certificate/data-analysis-with-python-certificate.chinese.md b/curriculum/challenges/chinese/12-certificates/data-analysis-with-python-certificate/data-analysis-with-python-certificate.chinese.md
new file mode 100644
index 0000000000..f7d85ed817
--- /dev/null
+++ b/curriculum/challenges/chinese/12-certificates/data-analysis-with-python-certificate/data-analysis-with-python-certificate.chinese.md
@@ -0,0 +1,51 @@
+---
+id: 5e46fc95ac417301a38fb934
+title: Data Analysis with Python Certificate
+challengeType: 7
+isHidden: false
+isPrivate: true
+localeTitle: ''
+---
+
+## Description
+<section id='description'>
+
+</section>
+
+## Instructions
+<section id='instructions'>
+
+</section>
+
+## Tests
+<section id='tests'>
+
+```yml
+tests:
+  - id: 5e46f7e5ac417301a38fb928
+    title: Mean-Variance-Standard Deviation Calculator
+  - id: 5e46f7e5ac417301a38fb929
+    title: Demographic Data Analyzer
+  - id: 5e46f7f8ac417301a38fb92a
+    title: Medical Data Visualizer
+  - id: 5e46f802ac417301a38fb92b
+    title: Page View Time Series Visualizer
+  - id: 5e4f5c4b570f7e3a4949899f
+    title: Sea Level Predictor
+```
+
+</section>
+
+## Challenge Seed
+<section id='challengeSeed'>
+
+</section>
+
+## Solution
+<section id='solution'>
+
+```js
+// solution required
+```
+
+</section>
diff --git a/curriculum/challenges/chinese/09-certificates/data-visualization-certificate/data-visualization-certificate.chinese.md b/curriculum/challenges/chinese/12-certificates/data-visualization-certificate/data-visualization-certificate.chinese.md
similarity index 91%
rename from curriculum/challenges/chinese/09-certificates/data-visualization-certificate/data-visualization-certificate.chinese.md
rename to curriculum/challenges/chinese/12-certificates/data-visualization-certificate/data-visualization-certificate.chinese.md
index 2a2e1b1300..9d968bcff1 100644
--- a/curriculum/challenges/chinese/09-certificates/data-visualization-certificate/data-visualization-certificate.chinese.md
+++ b/curriculum/challenges/chinese/12-certificates/data-visualization-certificate/data-visualization-certificate.chinese.md
@@ -2,17 +2,19 @@
 id: 5a553ca864b52e1d8bceea14
 title: Data Visualization Certificate
 challengeType: 7
+isHidden: false
 isPrivate: true
-videoUrl: ''
 localeTitle: 数据可视化证书
 ---
 
 ## Description
-<section id="description">
+<section id='description'>
+
 </section>
 
 ## Instructions
-<section id="instructions">
+<section id='instructions'>
+
 </section>
 
 ## Tests
@@ -46,4 +48,5 @@ tests:
 ```js
 // solution required
 ```
+
 </section>
diff --git a/curriculum/challenges/chinese/09-certificates/front-end-libraries-certificate/front-end-libraries-certificate.chinese.md b/curriculum/challenges/chinese/12-certificates/front-end-libraries-certificate/front-end-libraries-certificate.chinese.md
similarity index 90%
rename from curriculum/challenges/chinese/09-certificates/front-end-libraries-certificate/front-end-libraries-certificate.chinese.md
rename to curriculum/challenges/chinese/12-certificates/front-end-libraries-certificate/front-end-libraries-certificate.chinese.md
index 28dfad48d1..3c7e49d800 100644
--- a/curriculum/challenges/chinese/09-certificates/front-end-libraries-certificate/front-end-libraries-certificate.chinese.md
+++ b/curriculum/challenges/chinese/12-certificates/front-end-libraries-certificate/front-end-libraries-certificate.chinese.md
@@ -2,17 +2,19 @@
 id: 561acd10cb82ac38a17513bc
 title: Front End Libraries Certificate
 challengeType: 7
+isHidden: false
 isPrivate: true
-videoUrl: ''
 localeTitle: 前端库证书
 ---
 
 ## Description
-<section id="description">
+<section id='description'>
+
 </section>
 
 ## Instructions
-<section id="instructions">
+<section id='instructions'>
+
 </section>
 
 ## Tests
@@ -46,4 +48,5 @@ tests:
 ```js
 // solution required
 ```
+
 </section>
diff --git a/curriculum/challenges/chinese/12-certificates/information-security-certificate/information-security-certificate.chinese.md b/curriculum/challenges/chinese/12-certificates/information-security-certificate/information-security-certificate.chinese.md
new file mode 100644
index 0000000000..98bdf1db2e
--- /dev/null
+++ b/curriculum/challenges/chinese/12-certificates/information-security-certificate/information-security-certificate.chinese.md
@@ -0,0 +1,51 @@
+---
+id: 5e6021435ac9d0ecd8b94b00
+title: Information Security Certificate
+challengeType: 7
+isHidden: false
+isPrivate: true
+localeTitle: ''
+---
+
+## Description
+<section id='description'>
+
+</section>
+
+## Instructions
+<section id='instructions'>
+
+</section>
+
+## Tests
+<section id='tests'>
+
+```yml
+tests:
+  - id: 587d824a367417b2b2512c44
+    title: Stock Price Checker
+  - id: 587d824a367417b2b2512c45
+    title: Anonymous Message Board
+  - id: 5e46f979ac417301a38fb932
+    title: Port Scanner
+  - id: 5e46f983ac417301a38fb933
+    title: SHA-1 Password Cracker
+  - id: 5e601c775ac9d0ecd8b94aff
+    title: Secure Real Time Multiplayer Game
+```
+
+</section>
+
+## Challenge Seed
+<section id='challengeSeed'>
+
+</section>
+
+## Solution
+<section id='solution'>
+
+```js
+// solution required
+```
+
+</section>
diff --git a/curriculum/challenges/chinese/09-certificates/javascript-algorithms-and-data-structures-certificate/javascript-algorithms-and-data-structures-certificate.chinese.md b/curriculum/challenges/chinese/12-certificates/javascript-algorithms-and-data-structures-certificate/javascript-algorithms-and-data-structures-certificate.chinese.md
similarity index 91%
rename from curriculum/challenges/chinese/09-certificates/javascript-algorithms-and-data-structures-certificate/javascript-algorithms-and-data-structures-certificate.chinese.md
rename to curriculum/challenges/chinese/12-certificates/javascript-algorithms-and-data-structures-certificate/javascript-algorithms-and-data-structures-certificate.chinese.md
index 98a2af9398..e8f6d75502 100644
--- a/curriculum/challenges/chinese/09-certificates/javascript-algorithms-and-data-structures-certificate/javascript-algorithms-and-data-structures-certificate.chinese.md
+++ b/curriculum/challenges/chinese/12-certificates/javascript-algorithms-and-data-structures-certificate/javascript-algorithms-and-data-structures-certificate.chinese.md
@@ -2,17 +2,19 @@
 id: 561abd10cb81ac38a17513bc
 title: JavaScript Algorithms and Data Structures Certificate
 challengeType: 7
+isHidden: false
 isPrivate: true
-videoUrl: ''
 localeTitle: JavaScript算法和数据结构证书
 ---
 
 ## Description
-<section id="description">
+<section id='description'>
+
 </section>
 
 ## Instructions
-<section id="instructions">
+<section id='instructions'>
+
 </section>
 
 ## Tests
@@ -46,4 +48,5 @@ tests:
 ```js
 // solution required
 ```
+
 </section>
diff --git a/curriculum/challenges/chinese/09-certificates/legacy-back-end-certificate/legacy-back-end-certificate.chinese.md b/curriculum/challenges/chinese/12-certificates/legacy-back-end-certificate/legacy-back-end-certificate.chinese.md
similarity index 93%
rename from curriculum/challenges/chinese/09-certificates/legacy-back-end-certificate/legacy-back-end-certificate.chinese.md
rename to curriculum/challenges/chinese/12-certificates/legacy-back-end-certificate/legacy-back-end-certificate.chinese.md
index 52b60a4d45..08351c1d7b 100644
--- a/curriculum/challenges/chinese/09-certificates/legacy-back-end-certificate/legacy-back-end-certificate.chinese.md
+++ b/curriculum/challenges/chinese/12-certificates/legacy-back-end-certificate/legacy-back-end-certificate.chinese.md
@@ -2,17 +2,19 @@
 id: 660add10cb82ac38a17513be
 title: Legacy Back End Certificate
 challengeType: 7
+isHidden: false
 isPrivate: true
-videoUrl: ''
 localeTitle: 旧版后端证书
 ---
 
 ## Description
-<section id="description">
+<section id='description'>
+
 </section>
 
 ## Instructions
-<section id="instructions">
+<section id='instructions'>
+
 </section>
 
 ## Tests
@@ -56,4 +58,5 @@ tests:
 ```js
 // solution required
 ```
+
 </section>
diff --git a/curriculum/challenges/chinese/09-certificates/legacy-data-visualization-certificate/legacy-data-visualization-certificate.chinese.md b/curriculum/challenges/chinese/12-certificates/legacy-data-visualization-certificate/legacy-data-visualization-certificate.chinese.md
similarity index 94%
rename from curriculum/challenges/chinese/09-certificates/legacy-data-visualization-certificate/legacy-data-visualization-certificate.chinese.md
rename to curriculum/challenges/chinese/12-certificates/legacy-data-visualization-certificate/legacy-data-visualization-certificate.chinese.md
index e2f05501f6..f9216a524e 100644
--- a/curriculum/challenges/chinese/09-certificates/legacy-data-visualization-certificate/legacy-data-visualization-certificate.chinese.md
+++ b/curriculum/challenges/chinese/12-certificates/legacy-data-visualization-certificate/legacy-data-visualization-certificate.chinese.md
@@ -2,17 +2,19 @@
 id: 561add10cb82ac39a17513bc
 title: Legacy Data Visualization Certificate
 challengeType: 7
+isHidden: false
 isPrivate: true
-videoUrl: ''
 localeTitle: 旧数据可视化证书
 ---
 
 ## Description
-<section id="description">
+<section id='description'>
+
 </section>
 
 ## Instructions
-<section id="instructions">
+<section id='instructions'>
+
 </section>
 
 ## Tests
@@ -56,4 +58,5 @@ tests:
 ```js
 // solution required
 ```
+
 </section>
diff --git a/curriculum/challenges/chinese/09-certificates/legacy-front-end-certificate/legacy-front-end-certificate.chinese.md b/curriculum/challenges/chinese/12-certificates/legacy-front-end-certificate/legacy-front-end-certificate.chinese.md
similarity index 93%
rename from curriculum/challenges/chinese/09-certificates/legacy-front-end-certificate/legacy-front-end-certificate.chinese.md
rename to curriculum/challenges/chinese/12-certificates/legacy-front-end-certificate/legacy-front-end-certificate.chinese.md
index 668bbc7bf8..6d42edb882 100644
--- a/curriculum/challenges/chinese/09-certificates/legacy-front-end-certificate/legacy-front-end-certificate.chinese.md
+++ b/curriculum/challenges/chinese/12-certificates/legacy-front-end-certificate/legacy-front-end-certificate.chinese.md
@@ -2,17 +2,19 @@
 id: 561add10cb82ac38a17513be
 title: Legacy Front End Certificate
 challengeType: 7
+isHidden: false
 isPrivate: true
-videoUrl: ''
 localeTitle: 传统前端证书
 ---
 
 ## Description
-<section id="description">
+<section id='description'>
+
 </section>
 
 ## Instructions
-<section id="instructions">
+<section id='instructions'>
+
 </section>
 
 ## Tests
@@ -56,4 +58,5 @@ tests:
 ```js
 // solution required
 ```
+
 </section>
diff --git a/curriculum/challenges/chinese/12-certificates/legacy-full-stack-certificate/legacy-full-stack-certificate.chinese.md b/curriculum/challenges/chinese/12-certificates/legacy-full-stack-certificate/legacy-full-stack-certificate.chinese.md
new file mode 100644
index 0000000000..6896a67356
--- /dev/null
+++ b/curriculum/challenges/chinese/12-certificates/legacy-full-stack-certificate/legacy-full-stack-certificate.chinese.md
@@ -0,0 +1,54 @@
+---
+id: 561add10cb82ac38a17213bd
+title: Legacy Full Stack Certificate
+challengeType: 7
+isHidden: false
+isPrivate: true
+localeTitle: ''
+---
+
+## Description
+<section id='description'>
+
+</section>
+
+## Instructions
+<section id='instructions'>
+
+</section>
+
+## Tests
+<section id='tests'>
+
+```yml
+tests:
+  - id: 561add10cb82ac38a17513bc
+    title: Responsive Web Design Certificate
+  - id: 561abd10cb81ac38a17513bc
+    title: JavaScript Algorithms and Data Structures Certificate
+  - id: 561acd10cb82ac38a17513bc
+    title: Front End Libraries Certificate
+  - id: 5a553ca864b52e1d8bceea14
+    title: Data Visualization Certificate
+  - id: 561add10cb82ac38a17523bc
+    title: API's and Microservices Certificate
+  - id: 561add10cb82ac38a17213bc
+    title: Legacy Information Security and Quality Assurance Certificate
+
+```
+
+</section>
+
+## Challenge Seed
+<section id='challengeSeed'>
+
+</section>
+
+## Solution
+<section id='solution'>
+
+```js
+// solution required
+```
+
+</section>
diff --git a/curriculum/challenges/chinese/09-certificates/information-securtiy-and-quality-assurance-certificate/information-securtiy-and-quality-assurance-certificate.chinese.md b/curriculum/challenges/chinese/12-certificates/legacy-information-security-and-quality-assurance-certificate/legacy-information-security-and-quality-assurance-certificate.chinese.md
similarity index 78%
rename from curriculum/challenges/chinese/09-certificates/information-securtiy-and-quality-assurance-certificate/information-securtiy-and-quality-assurance-certificate.chinese.md
rename to curriculum/challenges/chinese/12-certificates/legacy-information-security-and-quality-assurance-certificate/legacy-information-security-and-quality-assurance-certificate.chinese.md
index e2eb358de7..635628df21 100644
--- a/curriculum/challenges/chinese/09-certificates/information-securtiy-and-quality-assurance-certificate/information-securtiy-and-quality-assurance-certificate.chinese.md
+++ b/curriculum/challenges/chinese/12-certificates/legacy-information-security-and-quality-assurance-certificate/legacy-information-security-and-quality-assurance-certificate.chinese.md
@@ -1,18 +1,20 @@
 ---
 id: 561add10cb82ac38a17213bc
-title: 'Information, Securtiy and Quality Assurance Certificate'
+title: Legacy Information Security and Quality Assurance Certificate
 challengeType: 7
+isHidden: false
 isPrivate: true
-videoUrl: ''
-localeTitle: 信息，安全和质量保证证书
+localeTitle: ''
 ---
 
 ## Description
-<section id="description">
+<section id='description'>
+
 </section>
 
 ## Instructions
-<section id="instructions">
+<section id='instructions'>
+
 </section>
 
 ## Tests
@@ -20,10 +22,10 @@ localeTitle: 信息，安全和质量保证证书
 
 ```yml
 tests:
-  - id: 587d8249367417b2b2512c42
-    title: Issue Tracker
   - id: 587d8249367417b2b2512c41
     title: Metric-Imperial Converter
+  - id: 587d8249367417b2b2512c42
+    title: Issue Tracker
   - id: 587d824a367417b2b2512c43
     title: Personal Library
   - id: 587d824a367417b2b2512c44
@@ -46,4 +48,5 @@ tests:
 ```js
 // solution required
 ```
+
 </section>
diff --git a/curriculum/challenges/chinese/12-certificates/machine-learning-with-python-certificate/machine-learning-with-python-certificate.chinese.md b/curriculum/challenges/chinese/12-certificates/machine-learning-with-python-certificate/machine-learning-with-python-certificate.chinese.md
new file mode 100644
index 0000000000..51e76a1de7
--- /dev/null
+++ b/curriculum/challenges/chinese/12-certificates/machine-learning-with-python-certificate/machine-learning-with-python-certificate.chinese.md
@@ -0,0 +1,51 @@
+---
+id: 5e46fc95ac417301a38fb935
+title: Machine Learning with Python Certificate
+challengeType: 7
+isHidden: false
+isPrivate: true
+localeTitle: ''
+---
+
+## Description
+<section id='description'>
+
+</section>
+
+## Instructions
+<section id='instructions'>
+
+</section>
+
+## Tests
+<section id='tests'>
+
+```yml
+tests:
+  - id: 5e46f8d6ac417301a38fb92d
+    title: Rock Paper Scissors
+  - id: 5e46f8dcac417301a38fb92e
+    title: Cat and Dog Image Classifier
+  - id: 5e46f8e3ac417301a38fb92f
+    title: Book Recommendation Engine using KNN
+  - id: 5e46f8edac417301a38fb930
+    title: Linear Regression Health Costs Calculator
+  - id: 5e46f8edac417301a38fb931
+    title: Neural Network SMS Text Classifier
+```
+
+</section>
+
+## Challenge Seed
+<section id='challengeSeed'>
+
+</section>
+
+## Solution
+<section id='solution'>
+
+```js
+// solution required
+```
+
+</section>
diff --git a/curriculum/challenges/chinese/12-certificates/quality-assurance-certificate/quality-assurance-certificate.chinese.md b/curriculum/challenges/chinese/12-certificates/quality-assurance-certificate/quality-assurance-certificate.chinese.md
new file mode 100644
index 0000000000..c1409dfee3
--- /dev/null
+++ b/curriculum/challenges/chinese/12-certificates/quality-assurance-certificate/quality-assurance-certificate.chinese.md
@@ -0,0 +1,51 @@
+---
+id: 5e611829481575a52dc59c0e
+title: Quality Assurance Certificate
+challengeType: 7
+isHidden: false
+isPrivate: true
+localeTitle: ''
+---
+
+## Description
+<section id='description'>
+
+</section>
+
+## Instructions
+<section id='instructions'>
+
+</section>
+
+## Tests
+<section id='tests'>
+
+```yml
+tests:
+  - id: 587d8249367417b2b2512c41
+    title: Metric-Imperial Converter
+  - id: 587d8249367417b2b2512c42
+    title: Issue Tracker
+  - id: 587d824a367417b2b2512c43
+    title: Personal Library
+  - id: 5e601bf95ac9d0ecd8b94afd
+    title: Sudoku Solver
+  - id: 5e601c0d5ac9d0ecd8b94afe
+    title: American British Translator
+```
+
+</section>
+
+## Challenge Seed
+<section id='challengeSeed'>
+
+</section>
+
+## Solution
+<section id='solution'>
+
+```js
+// solution required
+```
+
+</section>
diff --git a/curriculum/challenges/chinese/09-certificates/responsive-web-design-certificate/responsive-web-design-certificate.chinese.md b/curriculum/challenges/chinese/12-certificates/responsive-web-design-certificate/responsive-web-design-certificate.chinese.md
similarity index 91%
rename from curriculum/challenges/chinese/09-certificates/responsive-web-design-certificate/responsive-web-design-certificate.chinese.md
rename to curriculum/challenges/chinese/12-certificates/responsive-web-design-certificate/responsive-web-design-certificate.chinese.md
index 4ef027782d..55e675b12d 100644
--- a/curriculum/challenges/chinese/09-certificates/responsive-web-design-certificate/responsive-web-design-certificate.chinese.md
+++ b/curriculum/challenges/chinese/12-certificates/responsive-web-design-certificate/responsive-web-design-certificate.chinese.md
@@ -2,17 +2,19 @@
 id: 561add10cb82ac38a17513bc
 title: Responsive Web Design Certificate
 challengeType: 7
+isHidden: false
 isPrivate: true
-videoUrl: ''
 localeTitle: 响应式网页设计证书
 ---
 
 ## Description
-<section id="description">
+<section id='description'>
+
 </section>
 
 ## Instructions
-<section id="instructions">
+<section id='instructions'>
+
 </section>
 
 ## Tests
@@ -46,4 +48,5 @@ tests:
 ```js
 // solution required
 ```
+
 </section>
diff --git a/curriculum/challenges/chinese/12-certificates/scientific-computing-with-python-certificate/scientific-computing-with-python-certificate.chinese.md b/curriculum/challenges/chinese/12-certificates/scientific-computing-with-python-certificate/scientific-computing-with-python-certificate.chinese.md
new file mode 100644
index 0000000000..c8b604d6fc
--- /dev/null
+++ b/curriculum/challenges/chinese/12-certificates/scientific-computing-with-python-certificate/scientific-computing-with-python-certificate.chinese.md
@@ -0,0 +1,52 @@
+---
+id: 5e44431b903586ffb414c951
+title: Scientific Computing with Python Certificate
+challengeType: 7
+isHidden: false
+isPrivate: true
+localeTitle: ''
+---
+
+## Description
+<section id='description'>
+
+</section>
+
+## Instructions
+<section id='instructions'>
+
+</section>
+
+## Tests
+<section id='tests'>
+
+```yml
+tests:
+  - id: 5e44412c903586ffb414c94c
+    title: Arithmetic Formatter
+  - id: 5e444136903586ffb414c94d
+    title: Time Calculator
+  - id: 5e44413e903586ffb414c94e
+    title: Budget App
+  - id: 5e444147903586ffb414c94f
+    title: Polygon Area Calculator
+  - id: 5e44414f903586ffb414c950
+    title: Probability Calculator
+
+```
+
+</section>
+
+## Challenge Seed
+<section id='challengeSeed'>
+
+</section>
+
+## Solution
+<section id='solution'>
+
+```js
+// solution required
+```
+
+</section>
diff --git a/curriculum/challenges/english/12-certificates/legacy-information-security-and-quality-assurance-certificate/legacy-information-security-and-quality-assurance-certificate.md b/curriculum/challenges/english/12-certificates/legacy-information-security-and-quality-assurance-certificate/legacy-information-security-and-quality-assurance-certificate.english.md
similarity index 100%
rename from curriculum/challenges/english/12-certificates/legacy-information-security-and-quality-assurance-certificate/legacy-information-security-and-quality-assurance-certificate.md
rename to curriculum/challenges/english/12-certificates/legacy-information-security-and-quality-assurance-certificate/legacy-information-security-and-quality-assurance-certificate.english.md