n: 40 m: 441 packed: 13 density: 0 nodes: 0 solveTime: 9810 buildTime: 110 solved: true
{0,6,12}
{1,7,15}
{2,21,32}
{3,14,23}
{4,25,37}
{5,30,33}
{9,11,18}
{10,28,38}
{13,27,35}
{16,17,39}
{19,24,34}
{20,22,31}
{26,29,36}