n: 40 m: 493 packed: 13 density: 0 nodes: 0 solveTime: 31050 buildTime: 140 solved: true
{0,3,4}
{1,32,34}
{2,5,6}
{7,28,36}
{8,23,35}
{9,30,39}
{10,11,21}
{12,15,19}
{13,22,38}
{14,20,31}
{16,24,37}
{17,29,33}
{18,25,26}