Board Thread:General Discussion/@comment-25143095-20140724230234/@comment-26128177-20150310222748

I ended up finishing the last 3 skills and think the minimum number is 122 as I have 127 and 5 are now "retired".

It seems that there are no longer any questions under "Precalculus: Parametric equations and polar coordinates", so this badge appears unattainable. Assuming they eventually reintroduce questions under this topic, the number will rise to 123.

World of Math can be mastered without:


 * Integral calculus: AP Calculus practice questions
 * SAT : Full-length SAT
 * SAT : SAT Math practice
 * SAT : SAT Reading and Writing practice

The following are CS challenge patches:


 * Intro to JS: Drawing & Animation Mastery
 * Advanced JS: Natural Simulations
 * HTML/CSS: Making webpages
 * Hour of Drawing with Code
 * Hour of Drawing with Code Blocks
 * Hour of Databases
 * Hour of Webpages