NAJI, Areen; SALOUS, Saleh. Sudoku Puzzle Difficulty Rating based on Fuzzy Logic. Journal of Computer Science and Technology Studies, [S. l.], v. 6, n. 2, p. 86–91, 2024. DOI: 10.32996/jcsts.2024.6.2.10. Disponível em: https://al-kindipublishers.org/index.php/jcsts/article/view/6519. Acesso em: 7 aug. 2025.