March Challenge 2019 Division 2
Chef and a Beautiful Digit, Chef and Number Game
April Challenge 2019 Division 2
Friend or Girlfriend, Maximum Remaining
April Cook-Off 2019 Division 2
Making a Meal, Chef Learning Hungarian Algorithm
June Challenge 2019 Division 2
Road Signs, Chef and Proxy
June Cook-Off 2019 Division 2
Multiple Choice Exam, Eat Twice
June Lunchtime 2019 Division 2
Ping Paja Pong, Magda and Silly Pairs
July Challenge 2019 Division 2
Minimum and Maximum, Chef and Mean
August Challenge 2019 Division 2
Guddu and his Mother, Dilemma, Football, Distribute Apples, Zombie and the Caves
October Challenge 2019 Division 1
Even Edges, Chef and Maximum Star Value, Array Modification
November Challenge 2019 Division 1
Hard Sequence, A Simple Game
December Challenge 2019 Division 2
Addition, That Is My Score!, Binary XOR, (Challenge) Cubical Virus, Easy Subsequence Selection, Plus Multiply, Chefina and Ranges, Sticky Notes
December Lunchtime 2019 Division 1
The Evil Professor, Guess the number
January Challenge 2020 Division 1
Chef and Dynamo, Doraemon
July Cook-Off 2020 Division 1
Even-tual Reduction, OR-thodox Distinction
July Lunchtime 2020 Division 1
Binary Concatenation , Golomb Sequence
August Lunchtime 2020 Division 1
Game on a Strip, Counting Graphs, Alien Invasion
RECode 12.0 (Rated for all)
Chef and String, Chef and Rotation, Chef and Numbers
Coders' Legacy (Rated for all)
Chef vs Doof, Doof on Cartesian, Doof fires Brackets
September Cook-Off 2020 Division 1
Maximise Subsequence Value, Minimum Insertions
India