January Challenge 2021 Division 2
Chef and Ants, Guess the Tiling, Expected Number of SCCs, Stack-Queue Sort (Challenge), Watching CPL, Fair Elections, Cool Subsets
December Challenge 2020 Division 2
Vaccine Production, Vaccine Distribution, Even Pair Sum, Positive Prefixes, String Operations, Hail XOR
December Lunchtime 2020 Division 2 (Unrated)
Three Letters, Sed Sequences, One Zero Swaps
November Lunchtime 2020 Division 2
Gasoline Introduction, Gasoline
February Challenge 2021 Division 2
Frog Sort, Maximise Function, XOR Sums, Multiple Games, Prime Game, Another Tree with Number Theory, Team Name
March Challenge 2021 Division 1
Dense Graph, Consecutive Adding, Paparazzi Gennady, Space Arrays, Wireless Electricity (Challenge), Locked Safe, Maximum Topological Sort
April Challenge 2021 Division 1
Binary String MEX, Tree Permutations, Worthy Matrix, Destroy the EMP Chip, Chef and Dice, Boolean Game
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