December Challenge 2018 Division 2
Chef and Interactive Contests
November Challenge 2018 Division 2
Chef and Ridges, Chef and Happiness, Chef and Difficult Contests
January Challenge 2019 Division 2
Lucky Number Game, Fancy Quotes
February Challenge 2019 Division 2
Chef and Magical Jars, Chef and Secret Ingredients, Appy and Contest, Deputy Chef
February Cook-Off 2019 Division 2
Buying New Tablet, Chef and Party
December Challenge 2019 Division 2
Plus Multiply, That Is My Score!
January Challenge 2020 Division 2
Chef and Dynamo, Doraemon, Breaking Bricks
February Challenge 2020 Division 2
Hard Cash, School of Geometry
January Lunchtime 2020 Division 2
Bob and His Friends, Chef and Street Food
July Challenge 2020 Division 2
Chef and Card Game, Chef and Strings
August Challenge 2020 Division 2
Chef Wars - Return of the Jedi, Another Card Game Problem, Chef and Linear Chess, Smallest KMP
September Challenge 2020 Division 2
A Problem on Sticks, Ada Matrix
October Challenge 2020 Division 2
Positive AND, Covid Run, Chef and Easy Queries
September Lunchtime 2020 Division 2
GCD operations, Watermelon
January Challenge 2021 Division 3
Fair Elections, Chef and Division 3, Encoded String
February Challenge 2021 Division 3
Maximise Function, Highest Divisor
India