June Challenge 2020 Division 2
Chef and Icecream, Chef and Price Control, Chef and String
July Challenge 2020 Division 2
Ada King, Missing a Point, Chef and Card Game, Chef and Strings
August Challenge 2020 Division 2
Smallest KMP, Chef and Linear Chess, Another Card Game Problem, Chef Wars - Return of the Jedi
November Challenge 2020 Division 2
Restore Sequence, Ada and Dishes, Iron, Magnet and Wall
December Challenge 2020 Division 2
Vaccine Distribution, Vaccine Production, Positive Prefixes, Hail XOR, Even Pair Sum
March Challenge 2021 Division 3
Interesting XOR!, Chef and Groups, Space Arrays, No Time to Wait
April Challenge 2021 Division 3
Chef and Dice, Valid Pair, World Record, Strong Language
April Cook-Off 2021 Division 3
Bodybuilder, Chocolate Monger, Passing Marks
May Challenge 2021 Division 3 (Rated)
Xor Equality, Tic Tac Toe, Golf, Solubility
India