June Challenge 2015
Chef and His Friend, Chef and Memory Limit, Chef and Polygons, Steady tables
July Challenge 2015
Bread, MasterChef, Na2a and lucky stone, Chef and Cube
August Challenge 2015
Way Out, Gravity Guy, Cooking Machine, Aditi and Magic Trick
July Cook-Off 2015
Maximize Disjoint Pair Sum, Cops and the Thief Devu
August Cook-Off 2015
Chef and the XORed Number , Chef and the Wildcard Matching
July Lunchtime 2015
Greedy puppy, Puppy and game
January Long Challenge 2016
Sereja and Salesman, Chef and Inflation, Rupsa and the Game, Churu and Balls, Cyclist Race, Chef and Time Machine, Devu and Perfume
India