December Challenge 2018 Division 2
Chef and An Ideal Problem, Chef and Interactive Contests
November Challenge 2018 Division 2
Chef and Ridges, Chef and Difficult Contests
April Challenge 2019 Division 2
Friend or Girlfriend, Maximum Remaining, Fencing
December Challenge 2019 Division 2
Plus Multiply, That Is My Score!
March Challenge 2020 Division 2
Ada Bishop 2, Pintu and Fruits, XOR Engine
May Challenge 2020 Division 2
Triple Sort, Coronavirus Spread, Chef and Bitwise Product, Isolation Centers
July Challenge 2020 Division 2
Ada King, Chefina and Swaps, Missing a Point, Doctor Chef, Chef and Card Game, Chef and Strings
India