January Challenge 2021 Division 2
Chef and Ants, Guess the Tiling, Watching CPL, Fair Elections
December Challenge 2020 Division 2
Hail XOR, String Operations, Positive Prefixes, Even Pair Sum, Vaccine Production, Vaccine Distribution
February Challenge 2021 Division 2
Frog Sort, Highest Divisor, Maximise Function, Prime Game, Team Name
March Challenge 2021 Division 2
Interesting XOR!, College Life 4, Consecutive Adding, Paparazzi Gennady, Space Arrays, Wireless Electricity (Challenge), No Time to Wait
India