n: 40 m: 156 packed: 13 density: 0 nodes: 0 solveTime: 7120 buildTime: 20 solved: true
{0,8,27}
{1,6,30}
{2,9,13}
{3,29,34}
{4,16,26}
{5,22,24}
{7,15,31}
{10,28,33}
{11,23,36}
{12,14,25}
{17,18,37}
{19,21,39}
{20,35,38}