April Challenge 2020 Division 2
COVID Pandemic and Long Queue
May Challenge 2020 Division 2
Coronavirus Spread, Isolation Centers
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
Doctor Chef, Chef and Strings, Chef and Card Game, Missing a Point, Chefina and Swaps, Ada King
December Challenge 2020 Division 2
Even Pair Sum, Vaccine Production, Vaccine Distribution
Coders' Legacy (Rated for all)
Chef vs Doof, Doof on Cartesian
January Challenge 2021 Division 3
Fair Elections, Encoded String, Point Of Impact, Watching CPL, Chef and Division 3
June Challenge 2021 Division 3 (Rated)
Shortest Route, Bitwise Tuples, Bella ciao, Summer Heat
July Challenge 2021 Division 2 (Unrated)
Maximum Production, Relativity, Optimal Denomination, XxOoRr
August Cook-Off 2021 Division 2
Different String, Chef and Closure, Equal Difference, Clear the Array
India