August Challenge 2014
The Leaking Robot, Chef and Gift
September Challenge 2014
Chef and Left-Right, Fun with Rotation
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 Stones, Gcd Queries, One Dimensional Kingdoms, Sereja and Votes, Chef and A Large Permutation
January Cook-Off 2015
Suraj goes shopping, Tojo hates probabilities
February Challenge 2015
Chef and Chain, Chef and Strange Formula, Chef and Strings, Let us play with rank list, Chef and Equality
March Challenge 2015
Count Substrings, Sign Wave, Chef and Notebooks, Devu and his Class
April Challenge 2015
Count Sequences, Chef and Interview, Broken Telephone, Chef and Piano Scales
August Challenge 2015
Way Out, Gravity Guy, Cooking Machine, Aditi and Magic Trick
May Cook-Off 2015
Devu and friendship testing
January Long Challenge 2016
Chef and Inflation, Devu and Perfume, Chef and Time Machine, Churu and Balls, Rupsa and the Game
July Challenge 2016
Andrash and Stipendium, Chef and Segments, Chef and Tetris, Chef and Robots Competition, Chefland and Electricity
India