January Challenge 2020 Division 2
Equality, Chef and Dynamo, Breaking Bricks
February Challenge 2020 Division 2
No Change Required, 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
Coronavirus Spread, Isolation Centers
January Cook-Off 2020 Division 2
Chef Chick, Exam Cheating
January Lunchtime 2020 Division 2
Bob and His Friends, Chef and Street Food
May Lunchtime 2020 Division 2
Weird Walk, Lost Weekends
July Challenge 2020 Division 2
Chefina and Swaps, Missing a Point, Doctor Chef, Chef and Card Game, Chef and Strings, Ada King
August Challenge 2020 Division 2
Chef Wars - Return of the Jedi, Another Card Game Problem, Chef and Linear Chess, Smallest KMP, Chef and Wedding Arrangements
July Cook-Off 2020 Division 2
Even-tual Reduction, OR-thodox Distinction
July Lunchtime 2020 Division 2
Chef and Steps, Maximum Candies
February Challenge 2021 Division 2
Frog Sort, Prime Game, Maximise Function
July Lunchtime 2021 Division 3
Chef and Spells, Beautiful Pairs, Red Alert
