June Challenge 2020 Division 2
The Tom and Jerry Game!, Chef and Icecream, Chef and String, Chef and Price Control, Even Matrix
July Challenge 2020 Division 2
Chef and Strings, Chef and Card Game, Doctor Chef, Missing a Point, Chefina and Swaps, Ada King
August Challenge 2020 Division 2
Insanely Hard School Exams, Chef Wars - Return of the Jedi, Another Card Game Problem, Chef and Linear Chess, Smallest KMP, Chef and Wedding Arrangements
September Challenge 2020 Division 2
Ada Matrix, Coronavirus Spread 2, Find XOR, A Problem on Sticks, Chefina and Swap, Chef and Trump Cards
August Lunchtime 2020 Division 2
Game on a Strip, Mode of Frequencies
November Challenge 2020 Division 1
Restore Sequence, Magical Candy Store
January Challenge 2021 Division 2
Chef and Ants, Watching CPL, Fair Elections
December Challenge 2020 Division 1
String Operations, Even Pair Sum, Positive Prefixes, Hail XOR
February Challenge 2021 Division 2
Frog Sort, Team Name, Another Tree with Number Theory, Prime Game, Multiple Games, Maximise Function
SnackDown 2021 - Online Qualifiers
Lucky Number, Maximum Number Of Distinct Elements
India