n: 40 m: 305 packed: 13 density: 0 nodes: 0 solveTime: 850 buildTime: 60 solved: true
{0,1,9}
{2,8,31}
{3,29,39}
{4,7,34}
{5,35,36}
{6,14,22}
{10,32,38}
{11,19,37}
{12,13,21}
{15,24,30}
{16,17,23}
{18,20,26}
{25,28,33}