September Mega Cook-Off 2018 Division 2
ATM Machine, Make a Permutation
November Cook-Off 2018 Division 2
Truth and Dare, Beautiful Garland
September Challenge 2018 Division 2
Magician versus Chef, Chef and Adventures
November Challenge 2018 Division 2
Chef and Ridges, Appy Loves One, Chef and Difficult Contests, Chef and Happiness
October Challenge 2018 Division 2
Chef and Serves, Byte to Bit
August Lunchtime 2018 Division 2
Chef and Problem Setting, Chef and Eid
July Challenge 2019 Division 2
Minimum and Maximum, Chef and Mean
July Challenge 2020 Division 2
Chef and Card Game, Chef and Strings
March Challenge 2021 Division 3
Interesting XOR!, Chef and Groups, No Time to Wait
India