n: 40 m: 388 packed: 13 density: 0 nodes: 0 solveTime: 10220 buildTime: 90 solved: true
{0,18,27}
{1,24,35}
{2,5,38}
{4,6,37}
{7,10,29}
{8,15,31}
{9,20,36}
{11,22,25}
{12,30,32}
{13,14,39}
{16,19,26}
{17,28,34}
{21,23,33}