n: 40 m: 705 packed: 13 density: 0 nodes: 0 solveTime: 43200 buildTime: 280 solved: true
{0,9,23}
{1,4,13}
{2,5,35}
{3,21,36}
{6,7,32}
{10,19,33}
{11,22,28}
{12,25,31}
{14,27,39}
{15,30,37}
{16,20,26}
{17,18,34}
{24,29,38}