n: 40 m: 501 packed: 13 density: 0 nodes: 0 solveTime: 6260 buildTime: 150 solved: true
{0,20,26}
{1,29,34}
{2,23,24}
{3,10,14}
{4,13,30}
{5,7,35}
{6,9,22}
{8,16,18}
{11,31,36}
{12,32,37}
{17,27,38}
{19,21,28}
{25,33,39}