December Challenge 2018 Division 2
Chef and Interactive Contests
February Cook-Off 2019 Division 2
Buying New Tablet, Chef and Party
June Challenge 2019 Division 2
Road Signs, Chef and Proxy, Guddu on a Date
June Lunchtime 2019 Division 2
Ping Paja Pong, Magda and Silly Pairs
August Challenge 2019 Division 2
Football, Distribute Apples, Dilemma
January Challenge 2020 Division 2
Chef and Dynamo, Breaking Bricks
February Challenge 2020 Division 2
The Theatre Problem, School of Geometry, Hard Cash
April Challenge 2020 Division 2
Strange Number, Squared Subsequences, Unit GCD, Sell All the Cars, Leaked Answers (Challenge), COVID Pandemic and Long Queue
May Challenge 2020 Division 2
Isolation Centers, Coronavirus Spread
January Lunchtime 2020 Division 2
Bob and His Friends, Chef and Street Food
July Challenge 2020 Division 2
Ada King, Missing a Point, Chef and Card Game, Chef and Strings
August Challenge 2020 Division 2
Another Card Game Problem, Smallest KMP, Chef and Linear Chess, Chef Wars - Return of the Jedi
January Cook-Off 2021 Division 3
Distinct Pair Sums, Password
February Challenge 2021 Division 3
Team Name, Highest Divisor, Maximise Function, Multiple Games, Prime Game, Chef and Meetings, Another Tree with Number Theory, Frog Sort
March Challenge 2021 Division 2
Interesting XOR!, College Life 4, Consecutive Adding, Paparazzi Gennady, Space Arrays
April Challenge 2021 Division 2
Binary String MEX, Worthy Matrix, Chef and Dice, Boolean Game
India