December Challenge 2018 Division 2
Max and Electrical Panel, Chef and An Ideal Problem, Chef and Interactive XOR, Chef and Interactive Contests
February Challenge 2019 Division 2
Chef and Magical Jars, Chef and Secret Ingredients, Appy and Contest, Deputy Chef
August Challenge 2019 Division 2
Distribute Apples, Zombie and the Caves, Football, Dilemma, Guddu and his Mother
December Challenge 2019 Division 2
Chefina and Ranges, Plus Multiply, Binary XOR, Easy Subsequence Selection, That Is My Score!, Addition
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
April Challenge 2020 Division 1
Strange Number, Squared Subsequences, Leaked Answers (Challenge)
March Cook-Off 2020 Division 2
Find Your Gift, Box of Chocolates, Mysterious Sequence
February Lunchtime 2020 Division 2
At the Gates, Not All Flavours
August Cook-Off 2020 Division 2
Polygon Relationship, Chef and Work, K-Foldable String
August Lunchtime 2020 Division 1
Game on a Strip, Alien Invasion
India