n: 40 m: 169 packed: 13 density: 0 nodes: 0 solveTime: 390 buildTime: 10 solved: true
{0,7,23}
{1,20,30}
{2,13,18}
{3,12,32}
{4,10,31}
{5,6,33}
{8,28,36}
{9,16,21}
{11,27,34}
{14,25,39}
{15,19,38}
{17,22,26}
{29,35,37}