December Challenge 2018 Division 2
Max and Electrical Panel, Chef and Interactive XOR, Chef and Meatballs, Chef and Interactive Contests, Chef and An Ideal Problem
November Challenge 2018 Division 2
Chef and Difficult Contests
January Challenge 2019 Division 2
Different Neighbours, A Pizza Slice, Fancy Quotes, Chef and Modulo Game, Distinct Pairs, Lucky Number Game, Yet Another Problem About Sequences
February Challenge 2019 Division 2
Guess It Right, Deputy Chef, Art of Balance, Appy and Contest, Chef and Secret Ingredients, Chef and Magical Jars, Manhattan Rectangle
March Challenge 2019 Division 2
Chef got Recipes, Cheating on Queue, Chef and Number Game, Yet Again a Subarray Problem, Chef and a Beautiful Digit, (Challenge) Interleaving Strings
December Challenge 2019 Division 1
Chefina and Ranges, Binary XOR, Sticky Notes, That Is My Score!, Addition
June Cook-Off 2021 Division 1
Binary String on Steroids
India