November Challenge 2019 Division 2
Hard Sequence, Smallest Beautiful Number, From Zero to Infinity, Single Point of Failure, Weapon Value, Chef and Minimum Colouring, Physical Exercise
November Cook-Off 2019 Division 2
The Biggest Restaurant, Signature, Chef Diet
December Challenge 2019 Division 1
Addition, Sticky Notes, Binary XOR, Chefina and Ranges
January Challenge 2020 Division 1
Chef and Dynamo, Doraemon, Doofish Matrix, Chefina and Prefix Suffix Sums, English, Chefland Army, (Challenge) Building Anthills
February Challenge 2020 Division 1
Chef and Railway Stations, Expected Change, No Change Required, Long Contest and Cook Off Overlaps
