n: 40 m: 530 packed: 13 density: 0 nodes: 0 solveTime: 13290 buildTime: 170 solved: true
{0,15,37}
{1,18,22}
{2,27,39}
{3,5,7}
{4,23,29}
{6,9,21}
{8,20,38}
{10,24,35}
{11,33,36}
{12,19,25}
{13,30,34}
{14,26,31}
{16,17,32}