January Challenge 2013
The Minimum Number Of Moves, Three Different Numbers
February 2013 Challenge
Little Elephant and Cards, Buy1-Get1, Climbing Stairs, Efficient Painting
March Challenge 2013
Minesweeper, Approximately, Tourist Translations
April Challenge 2013
Little Elephant and Music, Barcelona Gameplay Tactics, Maximum Weight Difference, Levy Conjecture
July Challenge 2013
Galactik Football, The Probability Of Winning, Chef and Walking on the rectangle , Count K-Primes
January Challenge 2015
Chef and Stones, Sereja and Votes
