December Challenge 2018 Division 2
Chef and Interactive Contests
November Challenge 2018 Division 2
Chef and Difficult Contests
October Challenge 2018 Division 2
Chef and Serves, Byte to Bit
February Challenge 2019 Division 2
Chef and Secret Ingredients, Appy and Contest
June Challenge 2019 Division 2
Guddu on a Date, Chef and Proxy
July Challenge 2019 Division 2
Parity Again, Minimum and Maximum, Chef and Mean
August Challenge 2019 Division 2
Zombie and the Caves, Distribute Apples, Football, Guddu and his Mother, Dilemma
August Cook-Off 2019 Division 2
Chef and Pepperoni Pizza, Chef Drinks Coke
September Challenge 2019 Division 2
Chef and Interesting Subsequences , Chef Designed a Network, Biladerim Icin, Easy Fibonacci, Chef and Good Subsequences
October Challenge 2019 Division 1
Even Edges, Chef and Maximum Star Value, Array Modification
October Lunchtime 2020 Division 2
AND Plus OR, Chef and Subtree MEXs, Chef Likes Good Sequences
March Challenge 2021 Division 3
Chef and Groups, No Time to Wait
India