n: 40 m: 298 packed: 13 density: 0 nodes: 0 solveTime: 4610 buildTime: 50 solved: true
{0,18,27}
{1,2,6}
{3,28,39}
{4,17,35}
{5,20,26}
{7,22,30}
{8,11,14}
{9,34,38}
{10,12,21}
{15,24,37}
{16,25,29}
{19,33,36}
{23,31,32}