December Challenge 2019 Division 2
Easy Subsequence Selection, Plus Multiply, That Is My Score!
February Challenge 2020 Division 2
No Change Required, Long Contest and Cook Off Overlaps
April Challenge 2020 Division 2
Strange Number, Unit GCD, Sell All the Cars, COVID Pandemic and Long Queue
April Cook-Off 2020 Division 2
Matrix Decomposition, Lift Requests
March Lunchtime 2020 Division 2 (Unrated)
Chef Swaps Digits, Good Prefix
April Lunchtime 2020 Division 2
Another Birthday Present!, Chef in Fantasy League
May Lunchtime 2020 Division 2
Weird Walk, Lost Weekends
July Cook-Off 2020 Division 2
Even-tual Reduction, OR-thodox Distinction
July Lunchtime 2020 Division 2
Chef and Steps, Maximum Candies
June Lunchtime 2020 Division 2
Chef and Demonetisation, Increasing Decreasing
December Cook-Off 2020 Division 2
Self-Destructing Strings, Catch the Thief, Circle of Chaos, Minimum Attendance Requirement
December Lunchtime 2020 Division 1 (Unrated)
Three Letters, One Zero Swaps
Coders' Legacy (Rated for all)
Doof on Cartesian, Doof fires Brackets, Chef vs Doof
UWCOI 2021 (Rated for all)
Array Swaps, Hidden Numbers
February Lunchtime 2021 Division 2
Average Sorting, Palpal Strings, Coprime Range
