March Cook-off 2018 Division 2
Chef Restores a Matrix, Chef Judges a Competition, Chef Goes to the Cinema
September Mega Cook-Off 2018 Division 1
OneTwo, Make a Permutation
April Challenge 2018 Division 2
Workers, Average of Pairs, Count Good Prefixes, Highway Crossing, Weight of Numbers, Chef and Array (Challenge)
June Challenge 2018 Division 2
Binary Shuffle, Naive Chef
September Challenge 2018 Division 2
Magician versus Chef, War of XORs, Chef and Condition Zero (Challenge), Chef and Adventures, Table Game, Bad Shuffle
July Lunchtime 2020 Division 1
Golomb Sequence, Binary Concatenation
India