March Challenge 2015
Sign Wave, Chef and Notebooks
April Challenge 2015
Broken Telephone, Chef and Piano Scales, Chef and Interview
May Challenge 2015
Chef and Prime Divisors, Chef and new recipe
June Challenge 2015
Chef and Memory Limit, Chef and Polygons
July Challenge 2015
Bread, MasterChef, Na2a and lucky stone, Chef and Cube
August Challenge 2015
Gravity Guy, Aditi and Magic Trick, Cooking Machine, Devu And Churu , Way Out
September Challenge 2015
Chain of Doughnuts, Nikitosh and xor, Count Steps in Matrix, Bank robbery, Lighthouses, Cracking the Code
October Challenge 2015
Rupsa and Equilateral Triangle, Spheres, Who dares to be a millionaire, Time measure, Count Subarrays
August Cook-Off 2015
Chef and the XORed Number , Chef and the Wildcard Matching
June Challenge 2016
Chef And Binary Operation, Devu and an Array, Chef and Coins Game, Chef and Array and K, Chef and Rectangle Array
July Challenge 2016
Chef and Robots Competition, Chefland and Electricity
May Lunchtime 2016
Akhil And Colored Balls, Akhil And Random String
June Lunchtime 2016
Collisions, One more weird game, Square in numbers
India