| In an undirected graph, (i,j) means that node i and node j are connected with an undirected edge. | |
| The nodes are numbered from 0 to 8, and the edges are: (8,3) (7,6) (2,5) (4,6) (5,7) (3,4) (7,1) (5,6) (5,3) (3,2) (5,8) (4,7) (5,4) (4,2) (0,6) (0,3) (1,8) (1,5) (2,0). |