October Cook-Off 2017
Chef and Counting Test, Chef and Employment Test, Chef and Weird Queries
November Cook-Off 2017
Skiing, Online Chess, Random Pair
September Lunchtime 2017
Chef and Dice, Chef and Cook-Off Contests
January Lunchtime 2018
Chef and Game with Sequence, Chef and Escaping from the Labyrinth
February Challenge 2018
Car-pal Tunnel, Permutation and Palindrome, Chef And The Patents, Chef And His Characters
February Cook-Off 2018
Chef and Cook-Off, Chef and Tuples, Chef and Line
March Cook-off 2018 Division 1
Chef Goes to the Cinema, Chef Restores an Array, Chef Restores a Matrix
July Cook-Off 2018 Division 1
OR Matrix, Chef and GCD Game
March Lunchtime 2018 Division 1 (Unrated)
Partitions, Magic Elements
July Lunchtime 2018 Division 1
Forced Particles, GCD Sum
Hungary