n: 40 m: 251 packed: 13 density: 0 nodes: 0 solveTime: 1730 buildTime: 30 solved: true
{0,17,37}
{1,33,38}
{2,4,9}
{3,10,32}
{5,23,26}
{6,12,31}
{7,22,24}
{8,19,34}
{11,20,35}
{13,14,21}
{15,18,36}
{16,29,39}
{25,27,28}