n: 40 m: 258 packed: 13 density: 0 nodes: 0 solveTime: 4990 buildTime: 40 solved: true
{0,20,37}
{1,25,36}
{2,16,33}
{3,15,23}
{4,22,31}
{5,29,35}
{6,24,34}
{7,11,39}
{8,13,26}
{9,14,32}
{10,27,38}
{12,18,30}
{17,19,28}