n: 40 m: 440 packed: 13 density: 0 nodes: 0 solveTime: 8480 buildTime: 120 solved: true
{0,18,32}
{1,28,38}
{2,14,19}
{3,4,6}
{5,17,24}
{7,15,30}
{8,35,39}
{9,11,13}
{10,12,20}
{16,21,27}
{22,34,36}
{23,25,33}
{26,31,37}