September Challenge 2018 Division 2
Chef and Adventures, Magician versus Chef
April Challenge 2019 Division 2
Playing with Numbers, Friend or Girlfriend, Maximum Remaining, Subtree Removal, Fencing
August Challenge 2019 Division 2
Dilemma, Zombie and the Caves, Distribute Apples, Football, Guddu and his Mother
October Challenge 2019 Division 2
Operations on a Matrix, Phone Prices
July Challenge 2020 Division 2
Chef and Strings, Chef and Card Game, Doctor Chef, Chefina and Swaps, Ada King, Missing a Point
August Challenge 2020 Division 2
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, Chef and Trump Cards, A Problem on Sticks, Chefina and Swap
November Challenge 2020 Division 1
Restore Sequence, Magical Candy Store
December Challenge 2020 Division 1
Hail XOR, Positive Prefixes, Even Pair Sum
February Challenge 2021 Division 2
Frog Sort, Team Name, Prime Game, Multiple Games, Maximise Function
India