n: 40 m: 441 packed: 13 density: 0 nodes: 0 solveTime: 29970 buildTime: 110 solved: true
{0,28,31}
{1,17,35}
{2,24,36}
{3,5,6}
{7,9,32}
{8,18,19}
{10,34,37}
{11,14,39}
{12,20,23}
{13,15,27}
{16,26,33}
{21,25,30}
{22,29,38}