July Challenge 2020 Division 2
Chef and Card Game, Chef and Strings
August Challenge 2020 Division 2
Chef Wars - Return of the Jedi, Another Card Game Problem, Chef and Linear Chess
November Challenge 2020 Division 2
Restore Sequence, Ada and Dishes, Iron, Magnet and Wall
December Challenge 2020 Division 2
Positive Prefixes, Even Pair Sum, Vaccine Production, Vaccine Distribution
January Challenge 2021 Division 3
Fair Elections, Chef and Division 3, Encoded String
February Challenge 2021 Division 3
Frog Sort, Team Name, Chef and Meetings, Prime Game, Maximise Function, Highest Divisor
May Challenge 2021 Division 2 (Rated)
An Interesting Sequence, Xor Equality, Tic Tac Toe, Modular Equation
September Challenge 2021 Division 2 (Unrated)
Airline Restrictions, Travel Pass
India