n: 40 m: 519 packed: 13 density: 0 nodes: 0 solveTime: 33180 buildTime: 160 solved: true
{0,6,25}
{1,17,29}
{2,9,39}
{3,7,18}
{4,5,11}
{10,30,37}
{12,32,36}
{13,16,33}
{14,15,34}
{19,28,31}
{20,22,24}
{21,26,27}
{23,35,38}