August Challenge 2015
Gravity Guy, Cooking Machine, Aditi and Magic Trick, Way Out
September Challenge 2015
Chain of Doughnuts, Count Steps in Matrix, Bank robbery, Lighthouses, Cracking the Code
October Challenge 2015
Count Subarrays, Who dares to be a millionaire
June Challenge 2016
Chef And The Hiring Event, Devu and an Array, Chef and Coins Game, Chef And Binary Operation, Chef and Array and K
July Challenge 2016
Andrash and Stipendium, Chef and Tetris, Chef and Robots Competition, Chefland and Electricity
June Lunchtime 2016
Collisions, One more weird game, Square in numbers
India