November Cook-Off 2018 Division 2
Truth and Dare, Beautiful Garland
December Challenge 2018 Division 2
Chef and Interactive Contests, Chef and An Ideal Problem
November Challenge 2018 Division 2
Chef and Ridges, Chef and Difficult Contests
October Challenge 2018 Division 2
Chef and Serves, Byte to Bit
January Challenge 2019 Division 2
Fancy Quotes, Lucky Number Game
March Challenge 2019 Division 2
Chef and Number Game, Chef and a Beautiful Digit
June Challenge 2019 Division 2
Road Signs, Chef and Proxy, Guddu on a Date
August Challenge 2019 Division 2
Dilemma, Zombie and the Caves, Football, Distribute Apples
September Lunchtime 2019 Division 2
Chef Feeds Cats, Chef and Football Match
November Challenge 2019 Division 2
Hard Sequence, Weapon Value
January Challenge 2020 Division 2
Breaking Bricks, Equality, Doraemon, Chef and Dynamo
February Challenge 2020 Division 2
No Change Required, School of Geometry, Hard Cash
March Challenge 2020 Division 2
XOR Engine, Ada Bishop 2, Pintu and Fruits
UWCOI 2020 (Rated for all)
Button Pairs, Find maximum in an Array
India