n: 40 m: 319 packed: 13 density: 0 nodes: 0 solveTime: 5380 buildTime: 60 solved: true
{0,18,31}
{1,15,17}
{2,19,36}
{3,16,27}
{4,12,32}
{5,21,22}
{6,8,35}
{7,11,26}
{9,38,39}
{10,33,37}
{13,14,30}
{20,23,25}
{24,28,34}