Pebble Exchange Group of Graphs

Tatsuoki Kato, Tomoki Nakamigawa, Tadashi Sakuma

A graph puzzle $\mathrm{Puz}(G)$ of a graph $G$ is defined as follows. A configuration of $\mathrm{Puz}(G)$ is a bijection from the set of vertices of a board graph to the set of vertice…