June Challenge 2020 Division 2
The Tom and Jerry Game!, Operations on a Tuple, Chef and Icecream, Chef and String, Chef and Price Control, Even Matrix
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
Another Card Game Problem, Smallest KMP, Chef and Linear Chess, 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
Positive Prefixes, Even Pair Sum, Vaccine Production, Vaccine Distribution
May Challenge 2021 Division 2 (Rated)
Xor Equality, Modular Equation
India