December Challenge 2018 Division 2
Chef and Interactive Contests
March Challenge 2019 Division 2
Chef and Number Game, Chef and a Beautiful Digit
April Challenge 2019 Division 2
Friend or Girlfriend, Maximum Remaining
August Challenge 2019 Division 2
Dilemma, Football, Distribute Apples, Zombie and the Caves
September Challenge 2019 Division 2
Easy Fibonacci, Chef and Interesting Subsequences
September Lunchtime 2019 Division 2
Chef Feeds Cats, Chef and Football Match
October Challenge 2019 Division 2
Array Modification, Phone Prices, Operations on a Matrix, Missing Number, Even Edges, Chef and Maximum Star Value
November Challenge 2019 Division 2
Hard Sequence, Weapon Value, Chef and Minimum Colouring
December Challenge 2019 Division 2
Easy Subsequence Selection, Addition, That Is My Score!, Binary XOR, Plus Multiply
February Challenge 2020 Division 2
No Change Required, The Theatre Problem, School of Geometry, Hard Cash, (Challenge) Raisins, Long Contest and Cook Off Overlaps
India