January Challenge 2020 Division 2
Chef and Dynamo, Breaking Bricks
February Challenge 2020 Division 2
No Change Required, The Theatre Problem, School of Geometry, Hard Cash
April Challenge 2020 Division 2
Strange Number, Unit GCD, Sell All the Cars, Leaked Answers (Challenge), COVID Pandemic and Long Queue
May Challenge 2020 Division 2
Coronavirus Spread, Isolation Centers
January Cook-Off 2020 Division 2
Chef Chick, Exam Cheating
February Cook-Off 2020 Division 2
Penalty Shoot-Out II, Tax Slabs
January Lunchtime 2020 Division 2
Bob and His Friends, Chef and Street Food
May Lunchtime 2020 Division 2
Weird Walk, Lost Weekends
June Challenge 2020 Division 2
Even Matrix, The Tom and Jerry Game!, Chef and Icecream, Covid Sampling (Challenge), 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
Another Card Game Problem, Chef and Wedding Arrangements, Smallest KMP, Chef and Linear Chess, Chef Wars - Return of the Jedi
October Challenge 2020 Division 2
Positive AND, Replace for X, Covid Run, Chef and Easy Queries
December Challenge 2020 Division 2
Hail XOR, Positive Prefixes, Even Pair Sum, Vaccine Production, Vaccine Distribution
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