August Long Challenge 2017
Chef and Rainbow Array, Chef and Mover, Palindromic Game, Greedy Candidates
March Cook-off 2018 Division 2
Chef Goes to the Cinema, Chef Restores a Matrix, Chef Judges a Competition
May Challenge 2018 Division 1
Fake Binary Search, Dibs on Fibs
February Challenge 2019 Division 1
Chef and Secret Ingredients, Art of Balance
February Cook-Off 2019 Division 2
Max Range Queries, Chef and Secret Password, Buying New Tablet, Chef and Party
July Challenge 2019 Division 1
Guess the Prime!, Codechef War, Circular Merging
Bangladesh