September Challenge 2019 Division 2
Easy Fibonacci, Chef Designed a Network, Chef and Interesting Subsequences , Chef and Good Subsequences
September Mega Cook-Off 2019 Division 2
Two Groups, Playing with Matches
January Challenge 2020 Division 2
Chef and Dynamo, Doraemon, Equality, Chefina and Prefix Suffix Sums, Breaking Bricks
February Challenge 2020 Division 1
No Change Required, (Challenge) Raisins, Long Contest and Cook Off Overlaps
January Cook-Off 2021 Division 2
Prime Tuples, Maximise Islands
December Lunchtime 2020 Division 1 (Unrated)
Three Letters, One Zero Swaps
January Lunchtime 2021 Division 2 (Unrated)
Good Grid, Dreams of Divisibility, Binary Subsequence, Even Differences, Even Sum
October Cook-Off 2020 Division 1
Path-etic Sums, Yet Another Crossover Episode
February Lunchtime 2021 Division 2
Average Sorting, Sed Max, Palpal Strings, Coprime Range
