November Challenge 2018 Division 2
Chef and Difficult Contests, Chef and Happiness, Chef and Ridges
February Challenge 2019 Division 2
Chef and Magical Jars, Chef and Secret Ingredients, Appy and Contest, Deputy Chef
April Challenge 2019 Division 2
Maximum Remaining, Subtree Removal, Fencing
September Challenge 2019 Division 2
Chef and Interesting Subsequences , Chef and Good Subsequences, Easy Fibonacci
October Challenge 2019 Division 2
Chef and Maximum Star Value, Array Modification, Operations on a Matrix, Phone Prices
November Challenge 2019 Division 2
Chef and Minimum Colouring, Weapon Value, Hard Sequence, Physical Exercise
December Challenge 2019 Division 2
Plus Multiply, That Is My Score!
January Challenge 2020 Division 2
Chef and Dynamo, Breaking Bricks
April Challenge 2020 Division 2
Strange Number, Unit GCD, Sell All the Cars, COVID Pandemic and Long Queue
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