January Lunchtime 2018
Chef and Game with Sequence
March Challenge 2018 DIV 2
Chef and Glove, A Big Sale
September Mega Cook-Off 2018 Division 2
ATM Machine, Make a Permutation
September Challenge 2018 Division 2
Magician versus Chef, War of XORs, Chef and Adventures
December Challenge 2018 Division 2
Chef and Interactive Contests, Chef and An Ideal Problem
November Challenge 2018 Division 2
Chef and Ridges, Chef and Difficult Contests
October Challenge 2018 Division 2
Chef and Serves, Byte to Bit
January Challenge 2019 Division 2
Lucky Number Game, Fancy Quotes
August Challenge 2019 Division 2
Dilemma, Football, Distribute Apples, Zombie and the Caves
September Challenge 2019 Division 2
Chef Designed a Network, Chef and Interesting Subsequences , Easy Fibonacci, Chef and Good Subsequences
October Challenge 2019 Division 1
Even Edges, Chef and Maximum Star Value, Array Modification
January Challenge 2020 Division 1
Chef and Dynamo, Doraemon, Doofish Matrix, Chefina and Prefix Suffix Sums, Chefland Army, (Challenge) Building Anthills
India