n: 40 m: 208 packed: 13 density: 0 nodes: 0 solveTime: 990 buildTime: 30 solved: true
{0,1,19}
{2,11,38}
{3,7,29}
{4,9,12}
{5,30,36}
{6,14,25}
{8,23,27}
{10,16,28}
{13,21,22}
{15,33,37}
{17,26,34}
{18,24,31}
{32,35,39}