September Challenge 2018 Division 2
Chef and Adventures, Magician versus Chef
November Challenge 2018 Division 2
Chef and Difficult Contests
January Challenge 2019 Division 2
Lucky Number Game, Fancy Quotes
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, Chef and Ingredients
June Cook-Off 2019 Division 2
Multiple Choice Exam, Eat Twice
July Challenge 2019 Division 2
Parity Again, Minimum and Maximum, Chef and Mean
August Challenge 2019 Division 2
Dilemma, Football, Distribute Apples, Zombie and the Caves
September Challenge 2019 Division 2
Easy Fibonacci, Chef and Interesting Subsequences
October Challenge 2019 Division 2
Phone Prices, Missing Number, Operations on a Matrix, Chef and Maximum Star Value, Even Edges, Array Modification
November Challenge 2019 Division 2
Hard Sequence, Weapon Value
December Challenge 2019 Division 2
Plus Multiply, Binary XOR, Easy Subsequence Selection, That Is My Score!
December Lunchtime 2019 Division 2
Stupid Machine, Check Algorithm
January Challenge 2020 Division 2
Breaking Bricks, Doraemon, Chef and Dynamo
February Challenge 2020 Division 2
No Change Required, The Theatre Problem, School of Geometry, Hard Cash, Long Contest and Cook Off Overlaps
March Challenge 2020 Division 2
Chef and DAG, XOR Engine, Ada Bishop 2, Pintu and Fruits
February Cook-Off 2020 Division 2
Penalty Shoot-Out II, Tax Slabs
India