May Challenge 2016
Forest Gathering, Chef and Big Soccer, Laddu, Chef and Balls
June Challenge 2016
Chef And The Hiring Event, Chef and Rectangle Array, Chef and Array and K, Chef And Binary Operation, Chef and Coins Game, Devu and an Array
July Challenge 2016
Chef and Tetris, Chefland and Electricity, Chef and Robots Competition, Andrash and Stipendium
August Challenge 2016
Chef and His Garden, Chef and Circle Run, Chef and Chocolate, Chef and Round Run
September Challenge 2016
Dividing Machine, Chef and calculation
December Challenge 2016
Train Partner, Kirito in labyrinth, Kth Max Subarray
June Lunchtime 2016
Collisions, One more weird game
January Challenge 2017
Tourists in Mancunia, Reservior, Chef and Circle, Cats and Dogs, Capital Movement
January Cook-Off 2017
Digit Longest Increasing Subsequences 2
June Challenge 2017
Chef and Prime Queries, A Good Set, Chef and the Feast, Xenny and Coin Rankings, Triplets, Pairwise union of sets
India