August Challenge 2020 Division 2
Another Card Game Problem, Chef Wars - Return of the Jedi, Chef and Linear Chess
October Challenge 2020 Division 2
Positive AND, Covid Run, Chef and Easy Queries
November Challenge 2020 Division 2
Restore Sequence, Ada and Dishes, Iron, Magnet and Wall
December Cook-Off 2020 Division 2
Minimum Attendance Requirement
November Cook-Off 2020 Division 2
Chef and IPC Certificates
January Challenge 2021 Division 3
Fair Elections, Chef and Division 3, Point Of Impact, Encoded String
February Challenge 2021 Division 3
Highest Divisor, Maximise Function, Chef and Meetings, Frog Sort, Team Name
March Challenge 2021 Division 3
Interesting XOR!, Chef and Groups, Space Arrays, No Time to Wait
April Challenge 2021 Division 3
Chef and Dice, Strong Language, World Record, Valid Pair, Worthy Matrix, Binary String MEX
May Challenge 2021 Division 2 (Rated)
Xor Equality, Tic Tac Toe, Modular Equation
October Lunchtime 2021 Division 2
Chef and Water Car, Exactly N plus 1 Values
India