n: 40 m: 611 packed: 13 density: 0 nodes: 0 solveTime: 38650 buildTime: 220 solved: true
{0,4,5}
{1,2,6}
{7,23,33}
{8,9,17}
{10,14,26}
{11,28,37}
{12,15,32}
{13,29,35}
{16,30,31}
{18,24,27}
{19,22,34}
{20,25,38}
{21,36,39}