April Challenge 2020 Division 2
Unit GCD, Sell All the Cars, COVID Pandemic and Long Queue, Strange Number
June Challenge 2020 Division 2
Chef and Price Control, Chef and String, Chef and Icecream, The Tom and Jerry Game!, Even Matrix
July Challenge 2020 Division 2
Ada King, Missing a Point, Doctor Chef, Chef and Card Game, Chef and Strings
August Challenge 2020 Division 2
Chef Wars - Return of the Jedi, Chef and Wedding Arrangements, Smallest KMP, Chef and Linear Chess, Another Card Game Problem
September Challenge 2020 Division 2
Chefina and Swap, A Problem on Sticks, Chef and Trump Cards, Find XOR, Ada Matrix, Coronavirus Spread 2
August Cook-Off 2020 Division 2
Polygon Relationship, Chef and Work, K-Foldable String
India