n: 40 m: 436 packed: 13 density: 0 nodes: 0 solveTime: 8620 buildTime: 110 solved: true
{0,15,21}
{1,30,36}
{2,5,24}
{3,6,9}
{4,11,29}
{7,25,31}
{8,10,37}
{12,13,17}
{14,32,39}
{16,19,20}
{22,23,27}
{26,34,35}
{28,33,38}