n: 40 m: 453 packed: 13 density: 0 nodes: 0 solveTime: 14450 buildTime: 120 solved: true
{0,8,23}
{1,2,6}
{3,17,19}
{4,32,36}
{5,13,14}
{7,18,28}
{9,10,25}
{12,31,35}
{15,24,27}
{16,21,33}
{20,22,30}
{26,29,38}
{34,37,39}