n: 40 m: 511 packed: 13 density: 0 nodes: 0 solveTime: 31200 buildTime: 150 solved: true
{0,7,8}
{1,11,21}
{2,3,13}
{4,6,33}
{5,9,14}
{12,25,28}
{15,32,36}
{16,23,31}
{17,30,34}
{18,19,39}
{20,24,26}
{22,27,38}
{29,35,37}