Solve a problem for the first time.

Like a problem or solution.

Earned on 30 Jul 2015 for commenting on Problem 42477. Model a simple pendulum.

Earned on 29 Jul 2015 for creating Problem 42465. Connect blocks in a model.

Solve all the problems in CUP Challenge problem group.

Solve a problem first.

Solve a problem with a best solution.

Earned on 7 Jun 2018 for having 50 or more solvers for Problem 42465. Connect blocks in a model.

Solve all the problems in Cody Challenge problem group.

Solve all the problems in ASEE Challenge problem group.

Solve all the problems in Tiles Challenge problem group.

Solve 500 problems.

Solve all the problems in Cody5:Easy problem group.

Earned on 29 Jul 2015 for creating 10 problems.

Solve all the problems in Indexing I problem group.

Solve all the problems in Project Euler I problem group.

Solve all the problems in Magic Numbers problem group.

Solve all the problems in Indexing II problem group.

Solve all the problems in Matrix Manipulation I problem group.

Solve all the problems in Cody Problems in Japanese problem group.

Earned on 14 Oct 2016 for receiving 25 total likes for the created problems.

Solve all the problems in Draw Letters problem group.

Solve all the problems in Computation Geometry I problem group.

Solve all the problems in Sequences & Series I problem group.

Solve all the problems in Matrix Patterns problem group.

Solve all the problems in R2016b Feature Challenge problem group.

Solve all the problems in Divisible by x problem group.

Solve all the problems in Cody5:Hard problem group.

Must receive 50 total likes for the solutions you submitted.

Solve all the problems in Strings I problem group.

Solve all the problems in Matrix Manipulation II problem group.

Solve all the problems in Indexing III problem group.

Must receive 10 likes for a problem you created.

Must receive 10 likes for a solution you submitted.

Solve all the problems in Sequences & Series II problem group.

Solve all the problems in Matrix Patterns II problem group.

Solve all the problems in Number Manipulation I problem group.

Solve all the problems in Functions I problem group.

Solve all the problems in Strings II problem group.

Solve all the problems in Card Games problem group.

Solve all the problems in Sequences & Series III problem group.

Solve all the problems in Matrix Patterns III problem group.

Solve all the problems in Matrix Manipulation III problem group.

Solve all the problems in Indexing V problem group.

Solve all the problems in Magic Numbers II problem group.

Solve all the problems in Computational Geometry II problem group.

Solve all the problems in Strings III problem group.

Solve all the problems in Indexing IV problem group.

Solve all the problems in Number Manipulation II problem group.

Solve all the problems in Computational Geometry IV problem group.