June Challenge 2015
Chef and Memory Limit, Chef and Polygons, Steady tables
July Challenge 2015
Bread, Na2a and lucky stone, Chef and Cube
August Challenge 2015
Cooking Machine, Aditi and Magic Trick, Gravity Guy, Way Out
September Challenge 2015
Chain of Doughnuts, Count Steps in Matrix
October Challenge 2015
Count Subarrays, Who dares to be a millionaire
January Long Challenge 2016
Rupsa and the Game, Churu and Balls, Devu and Perfume
United States