October Challenge 2019 Division 2
Phone Prices, Operations on a Matrix
November Challenge 2019 Division 2
Hard Sequence, Weapon Value
December Challenge 2019 Division 2
Plus Multiply, That Is My Score!
March Challenge 2020 Division 2
Pintu and Fruits, Ada Bishop 2, XOR Engine
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
July Challenge 2020 Division 2
Ada King, Chef and Card Game, Chef and Strings
India