November Challenge 2018 Division 2
Chef and Difficult Contests, Chef and Happiness, Chef and Ridges
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
March Challenge 2019 Division 2
Chef and Number Game, Chef and a Beautiful Digit
December Challenge 2019 Division 2
That Is My Score!, Plus Multiply
January Challenge 2020 Division 2
Chef and Dynamo, Breaking Bricks
March Challenge 2020 Division 2
Ada Bishop 2, Pintu and Fruits
May Challenge 2020 Division 2
Coronavirus Spread, Isolation Centers
May Lunchtime 2020 Division 2
Weird Walk, Lost Weekends
June Challenge 2020 Division 2
The Tom and Jerry Game!, Chef and Price Control, Chef and String, Even Matrix, Chef and Icecream
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
Chefina and Swap, A Problem on Sticks, Ada Matrix
August Cook-Off 2020 Division 2
Polygon Relationship, Chef and Work
October Challenge 2020 Division 2
Positive AND, Chef and Easy Queries, Covid Run
January Challenge 2021 Division 3
Fair Elections, Chef and Division 3, Point Of Impact, Encoded String
February Challenge 2021 Division 3
Chef and Meetings, Maximise Function, Highest Divisor
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