n: 40 m: 520 packed: 13 density: 0 nodes: 0 solveTime: 19540 buildTime: 160 solved: true
{0,11,34}
{1,21,27}
{2,3,6}
{4,14,26}
{5,24,35}
{7,16,17}
{8,37,39}
{9,28,32}
{10,25,33}
{12,20,36}
{13,29,38}
{15,18,23}
{19,22,30}