January Challenge 2021 Division 2
Guess the Tiling, Expected Number of SCCs, Blackjack, Watching CPL, Fair Elections, Chef and Ants
December Challenge 2020 Division 2
Hail XOR, String Operations, Positive Prefixes, Even Pair Sum, Vaccine Production, Vaccine Distribution
December Cook-Off 2020 Division 2
Self-Destructing Strings, Minimum Attendance Requirement, Circle of Chaos, Catch the Thief, Sed Passwords
January Cook-Off 2021 Division 1
Mex Subsequence, Not Too Colourful
December Lunchtime 2020 Division 1 (Unrated)
Three Letters, One Zero Swaps
January Lunchtime 2021 Division 1 (Unrated)
Good Grid, Shifting Spoons, Dreams of Divisibility, Even Sum
