May Challenge 2020 Division 2
Isolation Centers, Coronavirus Spread
June Challenge 2020 Division 2
Even Matrix, The Tom and Jerry Game!, Chef and Icecream, Covid Sampling (Challenge), Chef and String, Chef and Price Control
July Challenge 2020 Division 2
Ada King, Chefina and Swaps, Missing a Point, Doctor Chef, Chef and Card Game, Chef and Strings
August Challenge 2020 Division 2
Chef and Wedding Arrangements, Smallest KMP, Chef and Linear Chess, Chef Wars - Return of the Jedi, Another Card Game Problem
September Challenge 2020 Division 2
Chefina and Swap, A Problem on Sticks, Ada Matrix, Coronavirus Spread 2
August Cook-Off 2020 Division 2
K-Foldable String, Chef and Work, Polygon Relationship
December Challenge 2020 Division 1
Positive Prefixes, Even Pair Sum
January Cook-Off 2021 Division 2
Prime Tuples, Maximise Islands
September Lunchtime 2020 Division 2
GCD operations, Robot Detector, Watermelon
