n: 40 m: 458 packed: 13 density: 0 nodes: 0 solveTime: 11030 buildTime: 120 solved: true
{0,20,38}
{1,33,34}
{2,9,39}
{3,7,12}
{4,32,35}
{5,11,36}
{6,17,28}
{8,27,31}
{10,21,22}
{13,15,25}
{14,18,30}
{19,23,29}
{24,26,37}