n: 40 m: 308 packed: 13 density: 0 nodes: 0 solveTime: 3000 buildTime: 50 solved: true
{0,9,23}
{1,3,39}
{2,13,28}
{4,20,27}
{5,26,38}
{6,30,37}
{7,17,29}
{8,12,33}
{10,14,24}
{11,19,31}
{15,25,36}
{16,21,35}
{22,32,34}