Williams-King, David, Jörg Denzinger, John Aycock, and Ben Stephenson. “The Gold Standard: Automatically Generating Puzzle Game Levels”. Proceedings of the AAAI Conference on Artificial Intelligence and Interactive Digital Entertainment 8, no. 1 (October 19, 2012): 191–196. Accessed May 10, 2026. https://ojs.aaai.org/index.php/AIIDE/article/view/12529.