December Challenge 2019 Division 2
That Is My Score!, Plus Multiply
January Challenge 2020 Division 2
Doraemon, Doofish Matrix, Equality, Chefina and Prefix Suffix Sums, Breaking Bricks, Chef and Dynamo
February Lunchtime 2020 Division 2
At the Gates, Swapping to Palindrome, Not All Flavours
June Challenge 2020 Division 1
The Delicious Cake, Covid Sampling (Challenge), Operations on a Tuple, The Tom and Jerry Game!
July Challenge 2020 Division 1
Chefina and Swaps, Chef and Dragon Dens, Missing a Point, Doctor Chef, Weird Product
July Cook-Off 2020 Division 1
Even-tual Reduction, OR-thodox Distinction, Path-etic Products
July Lunchtime 2020 Division 1
Binary Concatenation , Golomb Sequence
June Lunchtime 2020 Division 1
Maximum AND, Square Submatrices
October Challenge 2020 Division 1
Inversions, Positive AND, Replace for X, Compress all Subsegments, Covid Run, Chef and Easy Queries
January Challenge 2021 Division 1
Expected Number of SCCs, Guess the Tiling, Chef and Ants
December Cook-Off 2020 Division 1
Self-Destructing Strings, Circle of Chaos
October Cook-Off 2020 Division 1
Path-etic Sums, Yet Another Crossover Episode
October Lunchtime 2020 Division 1
Chef Likes Good Sequences, Chef Is Just Throwing Random Words, Cute Chef Gift
Coders' Legacy (Rated for all)
Chef vs Doof, Doof on Cartesian, Doof fires Brackets, Jeremy gets a gift
India