Baklan Şen, Banu, and Oznur Yasar Diner. “List Coloring Based Algorithm for the Futoshiki Puzzle”. An International Journal of Optimization and Control: Theories & Applications (IJOCTA) 14, no. 4 (October 9, 2024): 294–307. Accessed February 5, 2025. https://ijocta.org/index.php/files/article/view/1432.