January Challenge 2017
Cats and Dogs, Capital Movement
April Challenge 2017
Dish Of Life, Bear and Row 01, Bear and Clique Distances, Similar Dishes
May Challenge 2017
Chef and his daily routine, Courses in an university, Median of adjacent maximum numbers
August Long Challenge 2017
Greedy Candidates, Chef and Mover, Chef and Rainbow Array
February Challenge 2018
Chef And His Characters, Chef And The Patents
November Challenge 2018 Division 2
Chef and Ridges, Appy Loves One, Magician versus Chef 2, Chef and Difficult Contests, Chef and Happiness
November Challenge 2020 Division 2
Restore Sequence, Ada and Dishes, Iron, Magnet and Wall
Brazil