Earned on 21 Sep 2017 for solving all the problems in Project Euler I.
Earned on 29 Sep 2019 for solving a community curated groups. Has solved 4 community groups.
Earned on 13 Jun 2018 for solving all the problems in Draw Letters.
Earned on 29 Sep 2019 for solving all the problems in Magic Numbers II.
Earned on 8 Jun 2018 for solving all the problems in Matrix Patterns III.
Earned on 6 Jun 2018 for solving all the problems in Cody Problems in Japanese.
Earned on 29 Sep 2019 for solving all the problems in Matrix Patterns II.
Earned on 29 Sep 2019 for solving all the problems in Indexing II.
Earned on 15 Sep 2015 for solving all the problems in Magic Numbers.
Earned on 30 Nov 2013 for solving all the problems in CUP Challenge.
Earned on 25 Nov 2012 for solving Problem 1. Times 2 - START HERE.
Earned on 25 Nov 2012 for liking Problem 25. Remove any row in which a NaN appears.
Earned on 25 Nov 2012 for commenting on Problem 9. Who Has the Most Change?.
Earned on 15 Dec 2012 for solving all the problems in Tiles Challenge.
Earned on 17 Dec 2012 for creating Problem 1124. String permutations on phone keyboard.
Earned on 2 May 2014 for first solving .
Earned on 23 Apr 2013 for solving 500 problems.
Earned on 11 Jul 2013 for submitting the best solution .
Earned on 16 Nov 2013 for solving all the problems in ASEE Challenge.
Earned on 8 Dec 2013 for creating 10 problems.
Earned on 18 Sep 2020 for having 50 or more solvers for Problem 42632. Your favourite city!.
Earned on 22 Dec 2017 for receiving 25 total likes for the created problems.
Earned on 6 Jun 2018 for solving all the problems in Cody Challenge.
Earned on 10 Nov 2020 for Problem 44321. Van Eck's Sequence's nth member for having 10 or more likes.
Solve all the problems in Introduction to MATLAB problem group.
25 solvers for the group curated by the player
Solve all the problems in Cody5:Easy problem group.
Solve all the problems in Indexing I problem group.
Solve all the problems in Matrix Manipulation I problem group.
Solve all the problems in Sequences & Series I problem group.
Solve all the problems in Computation Geometry I problem group.
Solve all the problems in Matrix Patterns problem group.
Solve all the problems in Number Manipulation I 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 Manipulation II problem group.
Solve all the problems in R2016b Feature Challenge problem group.
Solve all the problems in Sequences & Series II problem group.
Solve all the problems in Indexing III problem group.
Solve all the problems in Cody5:Hard 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 Number Manipulation 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 Strings II problem group.
Solve all the problems in Matrix Manipulation III problem group.
Solve all the problems in Indexing IV problem group.
Must receive 50 total likes for the solutions you submitted.
Solve all the problems in Strings III problem group.
Solve all the problems in Computational Geometry II problem group.
Must receive 10 likes for a solution you submitted.
Solve all the problems in Computational Geometry IV problem group.
Solve all the problems in Logic problem group.
Solve all the problems in Fundamentals of robotics problem group.
Solve all the problems in Word Puzzles problem group.
Solve all the problems in Combinatorics - I 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 Modeling and Simulation Challenge problem group.