April Challenge 2020 Division 2
Squared Subsequences, Unit GCD, Sell All the Cars, Leaked Answers (Challenge), COVID Pandemic and Long Queue, Strange Number
May Challenge 2020 Division 2
Triple Sort, Coronavirus Spread, Isolation Centers
March Cook-Off 2020 Division 2
Find Your Gift, Box of Chocolates
April Cook-Off 2020 Division 2
Matrix Decomposition, Lift Requests
July Challenge 2020 Division 2
Chef and Strings, Chef and Card Game, (Challenge) Dynamic Hull, Chef and Dragon Dens, Doctor Chef, Missing a Point, Chefina and Swaps, LCM Constraints, Ada King
June Lunchtime 2020 Division 2
Maximum AND, Chef and Demonetisation, Increasing Decreasing
April Challenge 2021 Division 2
Binary String MEX, Worthy Matrix, Chef and Dice, Boolean Game
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