November Challenge 2017
Chef goes Left Right Left, Periodic Palindrome Construction, Villages and Tribes
February Challenge 2018
Chef And His Characters, Chef And The Patents, Car-pal Tunnel, Permutation and Palindrome
February Cook-Off 2018
Chef and Cook-Off, Chef and Tuples
March Challenge 2018 DIV 2
A Big Sale, Mix the Colors, Chef and Glove, Minion Chef and Bananas
May Challenge 2018 Division 2
Mighty Friend, Dibs on Fibs, Fake Binary Search, Xor Again, Minimum Deletions
November Challenge 2019 Division 1
Physical Exercise, Smallest Beautiful Number, From Zero to Infinity, A Simple Game, Single Point of Failure, (Challenge) Coloring Triangulations
May Challenge 2020 Division 1
Triple Sort, Sorting Vases, Chef and Bitwise Product
India