Rotate-N-Puzzle问题可解性分析及求解
陈云川,徐 峥,罗克露
Rotate-N-Puzzle:Solvable analysis and solving approach
CHEN Yun-chuan,XU Zheng,LUO Ke-lu
计算机工程与应用 . 2010, (15): 37 -40 .  DOI: 10.3778/j.issn.1002-8331.2010.15.012