April Cook-Off 2019 Division 2
Random Game, Pied Piper vs Hooli, Making a Meal, Mystery Tree, Chef Learning Hungarian Algorithm, Doubly Increasing Path
May Challenge 2019 Division 2
Binary Movements, Matches, Reduce to One, Where to Build the Roads
September Challenge 2019 Division 1
Power Sum, (Challenge) Sebi and CPU Design, Chef and Interesting Subsequences , Chef Designed a Network, Dodgers, Expected GCD, Fuzzy Linear Combinations, Biladerim Icin, Easy Fibonacci, Chef and Good Subsequences, Doofish Set
October Challenge 2019 Division 1
Array Modification, Chef and Maximum Star Value, Bacterial Reproduction, Even Edges
February Challenge 2020 Division 1
Chef and Railway Stations, Expected Change, No Change Required, Balancing Network Revisited, Chef and Gordon Ramsay 2, (Challenge) Raisins, Long Contest and Cook Off Overlaps, Polygon Chain
