n: 40 m: 380 packed: 13 density: 0 nodes: 0 solveTime: 5980 buildTime: 80 solved: true
{0,18,26}
{1,16,37}
{2,24,39}
{3,23,32}
{4,5,19}
{6,21,29}
{7,34,36}
{8,13,25}
{9,14,22}
{10,15,17}
{11,12,38}
{20,33,35}
{28,30,31}