December Challenge 2018 Division 2
Chef and Interactive Contests
February Challenge 2019 Division 2
Chef and Secret Ingredients, Appy and Contest, Deputy Chef
February Cook-Off 2019 Division 2
Buying New Tablet, Chef and Party
April Challenge 2019 Division 2
Friend or Girlfriend, Maximum Remaining
June Challenge 2019 Division 2
Chef and Proxy, Guddu on a Date
June Lunchtime 2019 Division 2
Ping Paja Pong, Magda and Silly Pairs
July Challenge 2019 Division 2
Parity Again, Minimum and Maximum, Chef and Mean
August Challenge 2019 Division 2
Guddu and his Mother, Encoding, Dilemma, Football, Distribute Apples, Zombie and the Caves
September Challenge 2019 Division 2
Chef and Good Subsequences, Chef and Interesting Subsequences , Easy Fibonacci
October Challenge 2019 Division 2
Even Edges, Missing Number, Chef and Maximum Star Value, Array Modification, Operations on a Matrix, Phone Prices
November Challenge 2019 Division 2
Hard Sequence, Weapon Value
December Challenge 2019 Division 2
Plus Multiply, That Is My Score!
January Challenge 2020 Division 2
Doraemon, Breaking Bricks, Equality, Chef and Dynamo
February Challenge 2020 Division 2
Chef and Railway Stations, No Change Required, The Theatre Problem, School of Geometry, Hard Cash, (Challenge) Raisins, Long Contest and Cook Off Overlaps
July Challenge 2020 Division 1
Chefina and Swaps, Chef and Dragon Dens, Missing a Point, Doctor Chef
India