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Earned on 26 Jan 2012 for solving Problem 1. Times 2 - START HERE.
Earned on 1 Feb 2012 for liking Solution 21245.
Earned on 27 Jan 2012 for commenting on Problem 120. radius of a spherical planet.
Create a problem.
Earned on 31 Jan 2012 for first solving Problem 200. does it touch ?.
Solve all the problems in CUP Challenge problem group.
Earned on 29 Jan 2012 for submitting the best solution Solution 13168.
Must have 50 solvers for a problem you created.
Solve all the problems in Tiles Challenge problem group.
Solve all the problems in ASEE Challenge problem group.
Solve all the problems in Cody Challenge problem group.
Create 10 problems.
Solve 500 problems.
Solve all the problems in Modeling and Simulation Challenge problem group.
Solve all the problems in Magic Numbers problem group.
Must receive 25 total likes for the problems you created.
Must receive 50 total likes for the solutions you submitted.
Must receive 10 likes for a solution you submitted.
Must receive 10 likes for a problem you created.
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