Mahmoud, Yazeed, and Nathan R. Sturtevant. “Using EPCG for Designing a Hexagon Tangram Puzzle”. Proceedings of the AAAI Conference on Artificial Intelligence and Interactive Digital Entertainment 20, no. 1 (November 15, 2024): 199–207. Accessed May 30, 2026. https://ojs.aaai.org/index.php/AIIDE/article/view/31880.