February Challenge 2020 Division 2
Hard Cash, Long Contest and Cook Off Overlaps, School of Geometry
March Challenge 2020 Division 2
XOR Engine, Ada Bishop 2, Pintu and Fruits
April Challenge 2020 Division 2
COVID Pandemic and Long Queue, Leaked Answers (Challenge), Sell All the Cars, Unit GCD, Squared Subsequences, Strange Number
April Cook-Off 2020 Division 2
Matrix Decomposition, Lift Requests
June Challenge 2020 Division 2
Even Matrix, The Tom and Jerry Game!, Chef and Icecream, Covid Sampling (Challenge), Chef and String, Chef and Price Control
India