December Challenge 2018 Division 2
Max and Electrical Panel, Chef and Interactive Contests, Chef and An Ideal Problem
November Challenge 2018 Division 2
Chef and Ridges, Appy Loves One, Magician versus Chef 2, Chef and Difficult Contests, Chef and Happiness
October Challenge 2018 Division 2
Chef and Serves, Byte to Bit
February Challenge 2019 Division 2
Art of Balance, Deputy Chef, (Challenge) Chef with Orchestra in the Kitchen, Appy and Contest, Chef and Magical Jars, Guess It Right, Manhattan Rectangle, Chef and Secret Ingredients
June Challenge 2020 Division 1
The Tom and Jerry Game!, Covid Sampling (Challenge)
April Lunchtime 2021 Division 2
Array Rotation, Bench Press, Chef in Heaven , A Special Tree
May Lunchtime 2021 Division 1
Total Components, K-Subarrays
July Cook-Off 2021 Division 1
Beautiful Subsequence, Mod Equality, Hidden Colored Graph
October Cook-Off 2021 Division 1
Can You Reach The End, Find the Modulus, Chef Up
India