Earned on 13 Mar 2019 for solving all the problems in Introduction to MATLAB.

Earned on 13 Dec 2019 for solving all the problems in Project Euler I.

Earned on 14 Feb 2019 for solving a community curated groups. Has solved 3 community groups.

Earned on 26 Jul 2018 for solving all the problems in Matrix Patterns III.

Earned on 17 Mar 2018 for solving all the problems in Computational Geometry IV.

Earned on 28 Dec 2017 for solving all the problems in Cody5:Hard.

Earned on 29 Dec 2017 for solving all the problems in Cody5:Easy.

Earned on 1 Aug 2018 for solving all the problems in Sequences & Series I.

Earned on 21 Aug 2018 for solving all the problems in Matrix Manipulation III.

Earned on 1 Aug 2018 for solving all the problems in Matrix Manipulation II.

Earned on 23 May 2018 for solving all the problems in Matrix Manipulation I.

Earned on 1 Aug 2018 for solving all the problems in Computational Geometry I.

Earned on 26 Jul 2018 for solving all the problems in Indexing I.

Earned on 26 Sep 2014 for solving all the problems in CUP Challenge.

Earned on 8 Oct 2019 for liking Problem 738. Criss_Cross_010 : Unique elements, Square array....

Earned on 26 Jan 2012 for commenting on Solution 4528.

Earned on 26 Jan 2012 for solving Problem 1. Times 2 - START HERE.

Earned on 15 Feb 2012 for submitting the best solution Solution 41968.

Earned on 17 Feb 2012 for first solving Problem 323. Mechanics 1.

Earned on 6 Sep 2012 for creating Problem 933. Ordinal numbers.

Earned on 20 Jan 2013 for receiving 50 total likes for solutions.

Earned on 20 Feb 2013 for solving all the problems in Tiles Challenge.

Earned on 14 Mar 2013 for solving all the problems in Cody Challenge.

Earned on 19 Mar 2013 for solving 500 problems.

Earned on 10 May 2013 for solving all the problems in ASEE Challenge.

Earned on 22 Aug 2013 for creating 10 problems.

Earned on 16 Feb 2020 at 4:32 for having 50 or more solvers for Problem 1323. Alternating sum.

25 solvers for the group curated by the player

Solve all the problems in Draw Letters problem group.

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

Solve all the problems in Indexing II problem group.

Solve all the problems in Magic Numbers problem group.

Solve all the problems in Strings I problem group.

Solve all the problems in Divisible by x problem group.

Solve all the problems in Matrix Patterns problem group.

Must receive 25 total likes for the problems you created.

Solve all the problems in Number Manipulation I problem group.

Solve all the problems in R2016b Feature Challenge problem group.

Solve all the problems in Matrix Patterns II problem group.

Solve all the problems in Indexing III problem group.

Solve all the problems in Magic Numbers II problem group.

Must receive 10 likes for a problem you created.

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

Solve all the problems in Functions I problem group.

Solve all the problems in Indexing V problem group.

Solve all the problems in Strings II problem group.

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

Solve all the problems in Card Games problem group.

Solve all the problems in Number Manipulation 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.

Must receive 10 likes for a solution you submitted.

Solve all the problems in Word Puzzles problem group.

Solve all the problems in Fundamentals of robotics problem group.

Solve all the problems in Computational Geometry III problem group.

Solve all the problems in Computer Games I problem group.

Solve all the problems in Logic problem group.

Solve all the problems in Combinatorics - I problem group.

Solve all the problems in Modeling and Simulation Challenge problem group.