March Challenge 2013
Approximately, Tourist Translations
April Challenge 2013
Little Elephant and Music, Barcelona Gameplay Tactics, Fault Tolerance, Maximum Weight Difference, Levy Conjecture
May Challenge 2013
Matchsticks, Witua and Math, Password Cracking Challenge, Name Reduction, Your Name is Mine, Field Trip
June Challenge 2013
Predictopus, To challenge or not, Lapindromes
July Challenge 2013
Count K-Primes, Chef and Walking on the rectangle , The Probability Of Winning
January Challenge 2014
Please like me, Chef and Feedback
June Challenge 2014
Chef and Subarray, Guessing Game, Forgot Password
August Challenge 2014
The Leaking Robot, Chef and Gift
January Challenge 2015
Sereja and Number Division 2, Chef and Stones, Sereja and Votes, One Dimensional Kingdoms
