n: 40 m: 167 packed: 13 density: 0 nodes: 0 solveTime: 180 buildTime: 20 solved: true
{0,7,23}
{1,4,14}
{2,17,24}
{3,28,34}
{5,25,37}
{6,9,20}
{8,12,32}
{10,13,38}
{11,18,33}
{15,26,31}
{16,22,39}
{19,21,35}
{27,30,36}