May Cook-Off 2014
Ups and Downs, Divide the Cake
June Challenge 2014
Chef and Subarray, Guessing Game, Forgot Password
August Challenge 2014
Chef and Reversing, Chef and Gift, Cleaning Tables, The Leaking Robot
September Challenge 2014
Chef and Left-Right, Fun with Rotation
October Challenge 2014
Chef and Ground, Magical Girl and Colored Liquid Potions
November Challenge 2014
Let us construct palindrome, Chef and Segment Game, Distinct Characters Subsequence
December Challenge 2014
Alok-nath and His Sanskars, XOR with Subset, Chef and Apple Trees
January Challenge 2015
Chef and A Large Permutation, Chef and Stones, Sereja and Votes, One Dimensional Kingdoms, Gcd Queries
January Cook-Off 2015
Suraj goes shopping, Tojo hates probabilities
February Challenge 2015
Chef and Chain, Chef and Strange Formula, Let us play with rank list, Chef and Equality
April Challenge 2015
Chef and Interview, Broken Telephone, Chef and Piano Scales
India