May Challenge 2020 Division 2
Isolation Centers, Coronavirus Spread
June Challenge 2020 Division 2
Even Matrix, The Tom and Jerry Game!, Chef and Icecream, Chef and String, Chef and Price Control
August Challenge 2020 Division 2
Smallest KMP, Chef and Wedding Arrangements, Chef and Linear Chess, Another Card Game Problem, Chef Wars - Return of the Jedi, Insanely Hard School Exams
October Challenge 2020 Division 2
Positive AND, Replace for X, Adding Squares, Covid Run, Chef and Easy Queries
February Challenge 2021 Division 2
Frog Sort, Team Name, Prime Game, Maximise Function
India