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Create a problem.
Solve a problem first.
Solve a problem with a best solution.
Must have 50 solvers for a problem you created.
Create 10 problems.
Earned on 16 Dec 2013 for solving 500 problems.
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.
Solve all the problems in Magic Numbers problem group.
Solve all the problems in Modeling and Simulation Challenge problem group.
Must receive 10 likes for a problem you created.