June Challenge 2016
Chef and Rectangle Array, Chef and New Game, Chef and Array and K, Chef And Binary Operation, Chef and Coins Game, Chef and cities, Devu and an Array, Chef And The Hiring Event
December Challenge 2016
Train Partner, Kth Max Subarray, Kirito in labyrinth, Our Base is Under Attack
February Cook-Off 2016
Puppy and Board, Puppy and Sum, Puppy and Catchers, Puppy and Palindromes
June Cook-Off 2016
Sticks, Right Triangle, Range Minimum Queries
June Lunchtime 2016
Collisions, One more weird game, Square in numbers
November Lunchtime 2016
Chef and his Students, Chef and Square Set
November Challenge 2017
Chef Hates Palindromes, Chef and Subarray Queries, Chef goes Left Right Left, Periodic Palindrome Construction, Villages and Tribes
Belarus