n: 40 m: 254 packed: 13 density: 0 nodes: 0 solveTime: 2310 buildTime: 30 solved: true
{0,12,13}
{1,14,22}
{2,18,23}
{3,4,8}
{5,11,20}
{6,7,25}
{9,30,38}
{10,21,24}
{15,29,35}
{16,27,32}
{19,31,33}
{26,28,39}
{34,36,37}