March Challenge 2020 Division 2
Pintu and Fruits, XOR Engine
April Challenge 2020 Division 2
Strange Number, Unit GCD, Sell All the Cars, COVID Pandemic and Long Queue
June Challenge 2020 Division 2
Even Matrix, The Tom and Jerry Game!, Chef and Icecream, Chef and String, Chef and Price Control
July Challenge 2020 Division 2
Missing a Point, Chef and Strings, Chef and Card Game, Chefina and Swaps, Ada King
August Challenge 2020 Division 2
Chef Wars - Return of the Jedi, Another Card Game Problem, Chef and Linear Chess, Smallest KMP
Coders' Legacy (Rated for all)
Chef vs Doof, Doof on Cartesian
UWCOI 2021 (Rated for all)
Array Swaps, Hidden Numbers
June Cook-Off 2021 Division 2
Binary String on Steroids, The Wave
India