n: 40 m: 605 packed: 13 density: 0 nodes: 0 solveTime: 48140 buildTime: 220 solved: true
{0,18,23}
{1,26,33}
{2,5,11}
{3,36,37}
{4,19,28}
{6,10,14}
{7,35,39}
{8,15,17}
{9,21,29}
{12,16,20}
{13,22,38}
{24,27,30}
{25,31,34}