n: 40 m: 247 packed: 13 density: 0 nodes: 0 solveTime: 1490 buildTime: 30 solved: true
{0,7,31}
{1,18,28}
{2,9,33}
{3,10,12}
{4,8,36}
{5,16,21}
{6,15,25}
{11,22,24}
{13,37,38}
{17,20,26}
{19,30,34}
{23,27,29}
{32,35,39}