n: 40 m: 268 packed: 13 density: 0 nodes: 0 solveTime: 3260 buildTime: 40 solved: true
{0,21,34}
{1,19,38}
{2,16,33}
{3,14,31}
{4,28,29}
{5,23,37}
{6,25,39}
{7,22,32}
{8,15,36}
{9,12,13}
{10,18,27}
{17,20,26}
{24,30,35}