September Challenge 2018 Division 2
War of XORs, Magician versus Chef, Chef and Adventures
December Challenge 2018 Division 2
Chef and Interactive Contests, Chef and An Ideal Problem
November Challenge 2018 Division 2
Chef and Difficult Contests
October Challenge 2018 Division 2
Chef and Serves, Byte to Bit
August Challenge 2019 Division 2
Dilemma, Football, Distribute Apples
December Challenge 2019 Division 2
Plus Multiply, That Is My Score!
February Challenge 2020 Division 2
School of Geometry, Hard Cash
March Challenge 2020 Division 2
XOR Engine, Pintu and Fruits
April Challenge 2020 Division 2
Strange Number, Unit GCD, Sell All the Cars, COVID Pandemic and Long Queue
June Challenge 2020 Division 2
Even Matrix, The Tom and Jerry Game!, Chef and Icecream, Chef and String, Chef and Price Control
July Challenge 2020 Division 2
Missing a Point, Chef and Card Game, Chef and Strings
August Challenge 2020 Division 2
Chef Wars - Return of the Jedi, Another Card Game Problem, Chef and Linear Chess
India