August Challenge 2016
Chef and Round Run, Chef and Chocolate
September Challenge 2016
Dividing Machine, Chef and digits of a number, Faded Palindromes, JosephLand, Chef and calculation, Chef and Friends
October Challenge 2016
Chef and Keyboard, Fenwick Iterations, Chef and Three Dogs
November Challenge 2016
Count Permutations, Task for Alexey, Chef and squares, Gift and Chef, Friends Meeting
December Challenge 2016
Train Partner, Kirito in labyrinth
February Challenge 2017
Chef and His Apartment Dues, Chef and his Best Friend, Eugene and big number, Chef and Triangles
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
June Cook-Off 2017
SnackUp, Centeroid, Ada and crayons
September Cook-Off 2017
Infinite OR Game, Statistics Construction, Subsequence Equality
October Cook-Off 2017
Chef and Counting Test, Chef and Employment Test, Chef and Weird Queries
September Lunchtime 2017
Chef and Dice, Chef and Cook-Off Contests
India