n: 40 m: 357 packed: 13 density: 0 nodes: 0 solveTime: 8890 buildTime: 80 solved: true
{0,9,23}
{1,27,33}
{2,35,38}
{3,36,37}
{4,19,28}
{5,24,26}
{6,13,32}
{7,21,39}
{8,10,17}
{11,25,31}
{12,15,20}
{14,16,18}
{29,30,34}