Graph Puzzles

Graph Puzzles is a series of logical games. Graphs with a various number of nodes are used as the playing field./nChips with numbers or letters are placed at the nodes of the graphs. The number of chips is one less than the number of nodes. The player moves each time a chip to the empty space from one of the neighboring fields./nThe goal is to bring the chips in an specific order, either in ascending numerical order or so that the letters represent a word. The target configuration is displayed as a thumbnail.