n: 40 m: 168 packed: 13 density: 0 nodes: 0 solveTime: 2540 buildTime: 20 solved: true
{0,10,18}
{1,9,24}
{2,3,8}
{4,21,33}
{5,14,27}
{6,17,22}
{7,11,13}
{12,23,26}
{16,28,32}
{19,35,36}
{20,34,39}
{25,29,31}
{30,37,38}