n: 40 m: 341 packed: 13 density: 0 nodes: 0 solveTime: 3910 buildTime: 70 solved: true
{0,6,15}
{1,35,39}
{2,3,25}
{4,7,20}
{8,24,28}
{9,19,33}
{10,13,27}
{11,17,18}
{12,31,36}
{14,21,30}
{16,23,34}
{22,32,38}
{26,29,37}