arXiv · 1106.2104
Zen Puzzle Garden (ZPG) is a one-player puzzle game. In this paper, we prove that deciding the solvability of ZPG is NP-complete.
Robin Houston, Joseph White, Martyn Amos. 2011-06-10. Zen Puzzle Garden is NP-complete. https://arxiv.org/abs/1106.2104
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