April Challenge 2014
Farmer Feb, Chef and Digits, Shortest Path in Binary Trees, Counting Matrices
June Challenge 2014
Maxim and Progressions, Chef and Digit Jumps, Chef and Subarray, Guessing Game, Forgot Password
July Challenge 2014
Garden Game, Chef and Frogs, Count Substrings, Reach The Point, Dish Owner
August Challenge 2014
Chef and Reversing, Chef and Gift, Cleaning Tables, The Leaking Robot
September Challenge 2014
Factorisation, Chef and Rainbow Array - 2, Chef and Left-Right, Chef and sequence, Fun with Rotation
November Challenge 2014
Chef and Segment Game, Distinct Characters Subsequence, Let us construct palindrome
November Challenge 2015
Eugene and function, Chef and cakes
Russia