June Challenge 2020 Division 2
Even Matrix, The Tom and Jerry Game!, Chef and Icecream, Chef and String, Chef and Price Control
UWCOI 2021 (Rated for all)
Array Swaps, Hidden Numbers
November Challenge 2021 Division 2 (Unrated)
Weird Palindrome Making, Hill Sequence, Equal Coins, Maximise the bridges
December Cook-Off 2021 Division 2
RGB Construction, Musical Chairs, Binary String Game, Median Minimization, Destructive Nim
March Lunchtime 2022 Division 2
Mathology, Sad Splits, Winter, Adjacency Love, Separate Them All
April Cook-Off 2022 Division 2
Sorted Distances, Sticks and Rectangles, Chef Goes Shopping
June Cook-Off 2022 Division 1 (Rated)
Throw and Take, Simple XOR, Prefix Suffix Distinct, Split AND Sum
June Lunchtime 2022 Division 1 (Rated)
The Lost Array, Max Shift After XOR, XOR Times 2 Is Sum, Minimum Xor On Segment
