n: 40 m: 189 packed: 13 density: 0 nodes: 0 solveTime: 1550 buildTime: 20 solved: true
{0,13,19}
{1,20,33}
{2,16,37}
{3,28,35}
{4,11,12}
{5,15,17}
{6,9,22}
{7,21,31}
{8,27,30}
{10,25,39}
{14,18,23}
{24,29,34}
{32,36,38}