n: 40 m: 84 packed: 13 density: 0 nodes: 0 solveTime: 110 buildTime: 10 solved: true
{0,5,6}
{1,27,30}
{2,32,36}
{3,9,22}
{4,14,19}
{7,18,28}
{8,29,38}
{10,13,24}
{11,25,26}
{12,21,31}
{15,34,37}
{16,33,35}
{20,23,39}