n: 40 m: 507 packed: 13 density: 0 nodes: 0 solveTime: 28510 buildTime: 150 solved: true
{0,5,8}
{1,30,36}
{2,7,29}
{3,23,33}
{6,11,31}
{9,28,35}
{10,20,24}
{12,32,38}
{13,17,19}
{14,27,39}
{15,25,26}
{16,21,22}
{18,34,37}