n: 40 m: 247 packed: 13 density: 0 nodes: 0 solveTime: 2370 buildTime: 40 solved: true
{0,20,36}
{1,7,26}
{2,31,35}
{3,18,19}
{4,17,24}
{5,12,38}
{6,13,15}
{8,16,22}
{9,21,23}
{10,29,33}
{11,14,39}
{27,28,30}
{32,34,37}