February Challenge 2020 Division 2
Chef and Railway Stations, No Change Required, The Theatre Problem, School of Geometry, Hard Cash, (Challenge) Raisins, Long Contest and Cook Off Overlaps
March Challenge 2020 Division 2
XOR Engine, Ada Bishop 2, Pintu and Fruits
April Challenge 2020 Division 2
Sell All the Cars, COVID Pandemic and Long Queue, Leaked Answers (Challenge), Ready Bitwise, Squared Subsequences, Strange Number, Unit GCD
July Challenge 2020 Division 1
Chefina and Swaps, Missing a Point, Doctor Chef
September Challenge 2020 Division 1
Chef and Trump Cards, Ada Matrix, Find XOR, Chefina and Swap
May Challenge 2021 Division 2 (Rated)
Valid Paths, Tree House, An Interesting Sequence, Xor Equality, Tic Tac Toe, Modular Equation
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