n: 40 m: 168 packed: 13 density: 0 nodes: 0 solveTime: 1140 buildTime: 20 solved: true
{0,11,17}
{1,9,21}
{2,12,38}
{3,24,27}
{4,16,31}
{5,10,37}
{6,13,18}
{7,19,36}
{8,22,26}
{14,25,39}
{15,28,35}
{20,23,30}
{32,33,34}