n: 40 m: 501 packed: 13 density: 0 nodes: 0 solveTime: 14660 buildTime: 150 solved: true
{0,28,37}
{1,27,31}
{2,17,29}
{3,5,22}
{4,36,38}
{6,14,23}
{7,8,13}
{9,15,18}
{10,12,19}
{11,33,34}
{16,30,39}
{20,21,25}
{26,32,35}