May Challenge 2020 Division 2
Isolation Centers, Coronavirus Spread
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
Ada King, Chefina and Swaps, Missing a Point, Doctor Chef, Chef and Card Game, Chef and Strings
August Challenge 2020 Division 2
Chef and Wedding Arrangements, Smallest KMP, Chef and Linear Chess, Chef Wars - Return of the Jedi, Insanely Hard School Exams, Another Card Game Problem
September Challenge 2020 Division 2
A Problem on Sticks, Ada Matrix
July Cook-Off 2020 Division 2
Even-tual Reduction, OR-thodox Distinction
June Lunchtime 2020 Division 2
Increasing Decreasing, Chef and Demonetisation
October Challenge 2020 Division 2
Positive AND, Replace for X, Covid Run, Chef and Easy Queries
Coders' Legacy (Rated for all)
Chef vs Doof, Doof on Cartesian
Code Ensemble (Rated for Division 2)
Priya and AND, Help Martha
India