February Challenge 2019 Division 2
Guess It Right, Chef and Magical Jars, Chef and Secret Ingredients, Appy and Contest, Deputy Chef, Manhattan Rectangle
June Challenge 2019 Division 2
Guddu on a Date, Sum and GCD, Chef and Ingredients, Chef and Proxy, Road Signs
July Challenge 2019 Division 2
Guess the Prime!, Parity Again, Minimum and Maximum, Chef and Mean
August Challenge 2019 Division 2
Guddu and his Mother, Zombie and the Caves, Distribute Apples, Football, Dilemma
September Challenge 2019 Division 2
Chef and Good Subsequences, Easy Fibonacci, Chef Designed a Network, Chef and Interesting Subsequences
October Challenge 2019 Division 1
Even Edges, Chef and Maximum Star Value, Array Modification, (Challenge) Maximizing LIS, Operations on a Matrix, Phone Prices
January Challenge 2020 Division 1
Chef and Dynamo, Doraemon
India