n: 40 m: 168 packed: 13 density: 0 nodes: 0 solveTime: 910 buildTime: 20 solved: true
{0,9,19}
{1,7,10}
{2,11,17}
{3,15,33}
{4,30,38}
{5,26,39}
{6,8,34}
{12,16,27}
{13,23,37}
{14,21,28}
{18,25,31}
{20,22,35}
{24,32,36}