March Challenge 2020 Division 2
Ada Bishop 2, Pintu and Fruits
April Challenge 2020 Division 2
Strange Number, Unit GCD, Sell All the Cars, COVID Pandemic and Long Queue
May Challenge 2020 Division 2
Coronavirus Spread, Isolation Centers
June Challenge 2020 Division 2
Even Matrix, The Tom and Jerry Game!, Operations on a Tuple, Chef and Icecream, Chef and String, Chef and Price Control
July Challenge 2020 Division 2
Chef and Strings, Chef and Card Game, Doctor Chef, Chefina and Swaps, Ada King, Missing a Point
August Challenge 2020 Division 2
Chef Wars - Return of the Jedi, Another Card Game Problem, Chef and Linear Chess, Smallest KMP, Chef and Wedding Arrangements
September Challenge 2020 Division 1
Divide Candies, Coronavirus Spread 2, Ada Matrix, Find XOR, Chef and Trump Cards, Chefina and Swap
June Lunchtime 2020 Division 2
Chef and Demonetisation, Increasing Decreasing
October Challenge 2020 Division 1
Positive AND, Replace for X
November Challenge 2020 Division 1
Restore Sequence, Magical Candy Store
December Challenge 2020 Division 1
Hail XOR, Positive Prefixes, Even Pair Sum
India