n: 40 m: 244 packed: 13 density: 0 nodes: 0 solveTime: 13600 buildTime: 30 solved: true
{0,12,19}
{1,25,31}
{2,15,32}
{3,10,38}
{4,30,33}
{5,9,35}
{6,20,23}
{7,13,39}
{8,27,28}
{11,22,36}
{14,16,21}
{18,24,29}
{26,34,37}