n: 40 m: 382 packed: 13 density: 0 nodes: 0 solveTime: 5870 buildTime: 90 solved: true
{0,19,28}
{1,8,17}
{2,32,38}
{3,30,36}
{4,12,34}
{5,22,33}
{6,18,31}
{7,9,13}
{10,14,37}
{11,24,35}
{15,29,39}
{16,21,25}
{20,23,27}