January Challenge 2014
Chef and Feedback, Please like me
June Challenge 2014
Chef and Subarray, Guessing Game
August Challenge 2014
Chef and Reversing, The Leaking Robot, Chef and Gift
September Challenge 2014
Factorisation, Fun with Rotation, Chef and sequence, Chef and Left-Right
October Challenge 2014
Chef and Ground, Magical Girl and Colored Liquid Potions
November Challenge 2014
Chef and Segment Game, Chef and Words, Distinct Characters Subsequence, Chef and Red Black Tree, Let us construct palindrome
January Challenge 2015
Chef and A Large Permutation, Chef and Stones, Sereja and Votes, One Dimensional Kingdoms, Gcd Queries, Sereja and Number Division 2
February Challenge 2015
Jigsaw Puzzle Solving, Chef and Equality, Let us play with rank list, Chef and Strings, Chef and Complex String Coverage, Chef and Strange Formula, Chef and Chain
April Challenge 2015
Count Sequences, Chef and Interview, Broken Telephone, Division of Lands, Chef and Piano Scales
December Challenge 2015
Chef and the stones, Plane Division, Oracle Devu and Longest Common Subsequence, Chef and Filters
India