October Challenge 2014
Chef and Ground, Remy paints the fence, DevuLand, Dinosaurs and Laddus, Chef and Painting, Magical Girl and Colored Liquid Potions
November Challenge 2014
Chef and Segment Game, Distinct Characters Subsequence, Let us construct palindrome
December Challenge 2014
Alok-nath and His Sanskars, Chef and Apple Trees
January Challenge 2015
Chef and Stones, Sereja and Votes
January Cook-Off 2015
Tojo hates probabilities, Suraj goes shopping
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
August Challenge 2015
Gravity Guy, Cooking Machine
September Challenge 2015
Chain of Doughnuts, Count Steps in Matrix, Bank robbery, Lighthouses
October Challenge 2015
Time measure, Count Subarrays, Who dares to be a millionaire, Rupsa and Equilateral Triangle
January Long Challenge 2016
Chef and Making Triples, Devu and Perfume, Chef and Time Machine, Churu and Balls, Rupsa and the Game
March Challenge 2016
Palindromic substrings, Chef and Number Guessing, maximize the sum, Chef And Special Dishes
April Challenge 2016
Help Watson Escape, Chef and Ballons, Chef And Magical Path, Chef And Coloring
India