n: 40 m: 501 packed: 13 density: 0 nodes: 0 solveTime: 6450 buildTime: 150 solved: true
{0,13,21}
{1,9,33}
{2,5,7}
{3,12,22}
{4,19,35}
{6,10,14}
{8,24,39}
{11,15,28}
{16,25,36}
{17,30,31}
{18,23,29}
{26,27,32}
{34,37,38}