January Challenge 2020 Division 2
Doraemon, Chef and Dynamo, Breaking Bricks, Equality
February Challenge 2020 Division 2
No Change Required, The Theatre Problem, School of Geometry, Hard Cash
March Challenge 2020 Division 2
XOR Engine, Ada Bishop 2, Pintu and Fruits
April Challenge 2020 Division 2
Squared Subsequences, COVID Pandemic and Long Queue, Leaked Answers (Challenge), Sell All the Cars, Unit GCD, Strange Number
May Challenge 2020 Division 2
Coronavirus Spread, Isolation Centers
February Cook-Off 2020 Division 2
Penalty Shoot-Out II, Tax Slabs
International Coding Marathon (Rated for all)
Are These Equal, Mr Pr in a Dilemma , Lavanya Loves DFA
July Challenge 2020 Division 2
Ada King, Chefina and Swaps, Missing a Point, Doctor Chef, Chef and Card Game, Chef and Strings
July Cook-Off 2020 Division 2
OR-thodox Distinction, Even-tual Reduction
July Lunchtime 2020 Division 2
Chef and Steps, Maximum Candies
RECode 12.0 (Rated for all)
Chef and String, Chef and Numbers
October Challenge 2020 Division 1
Positive AND, Replace for X
Coders' Legacy (Rated for all)
Chef vs Doof, Doof on Cartesian, Doof fires Brackets
India