n: 40 m: 626 packed: 13 density: 0 nodes: 0 solveTime: 69860 buildTime: 230 solved: true
{0,2,7}
{1,5,36}
{3,24,33}
{4,35,39}
{6,14,22}
{9,32,38}
{10,18,23}
{11,26,30}
{12,19,21}
{13,17,27}
{15,29,37}
{16,25,31}
{20,28,34}