n: 40 m: 313 packed: 13 density: 0 nodes: 0 solveTime: 4100 buildTime: 60 solved: true
{0,15,28}
{1,32,34}
{2,5,20}
{3,7,12}
{4,10,13}
{6,23,33}
{8,9,27}
{11,19,30}
{14,18,31}
{16,22,37}
{17,26,39}
{21,35,36}
{24,25,38}