December Challenge 2018 Division 2
Chef and An Ideal Problem, Chef and Interactive Contests
November Challenge 2018 Division 2
Chef and Difficult Contests
October Challenge 2018 Division 2
Chef and Serves, Byte to Bit
February Challenge 2019 Division 2
Chef and Magical Jars, Chef and Secret Ingredients, Appy and Contest, Deputy Chef
March Challenge 2019 Division 2
Chef and Number Game, Chef and a Beautiful Digit
April Challenge 2019 Division 2
Friend or Girlfriend, Maximum Remaining, Fencing
April Cook-Off 2019 Division 2
Making a Meal, Chef Learning Hungarian Algorithm
August Challenge 2019 Division 2
Dilemma, Football, Distribute Apples
February Challenge 2020 Division 2
School of Geometry, Hard Cash
January Lunchtime 2020 Division 2
Bob and His Friends, Chef and Street Food
SnackDown 2021 - Online Qualifiers
Lucky Number, Maximum Number Of Distinct Elements
October Challenge 2021 Division 3 (Rated)
Longest AND Subarray, Digit Removal, MEX-OR, Three Boxes, Which Mixture
India