n: 40 m: 542 packed: 13 density: 0 nodes: 0 solveTime: 14690 buildTime: 170 solved: true
{0,15,39}
{1,2,14}
{3,6,22}
{4,32,38}
{5,12,20}
{7,28,37}
{8,25,26}
{9,19,24}
{11,21,31}
{13,17,33}
{16,18,23}
{27,34,36}
{29,30,35}