January Challenge 2017
Capital Movement, Cats and Dogs, Reservior
November Challenge 2017
Chef goes Left Right Left, Villages and Tribes
December Cook-Off 2017
Beautiful Array, Football Match
January Challenge 2018
K-Concatenation, Maximum Score, Rectangle
February Challenge 2018
Permutation and Palindrome, Car-pal Tunnel, Chef And The Patents, Chef And His Characters
April Challenge 2018 Division 2
Weight of Numbers, Workers
June Challenge 2019 Division 2
Road Signs, Chef and Proxy, Guddu on a Date
January Challenge 2020 Division 2
Chef and Dynamo, Breaking Bricks
Turkey