n: 40 m: 209 packed: 13 density: 0 nodes: 0 solveTime: 1180 buildTime: 30 solved: true
{0,20,26}
{1,16,29}
{2,24,38}
{3,13,33}
{4,32,37}
{5,11,27}
{7,22,35}
{8,17,36}
{9,14,25}
{10,15,34}
{12,19,23}
{18,31,39}
{21,28,30}