n: 40 m: 225 packed: 13 density: 0 nodes: 0 solveTime: 1700 buildTime: 30 solved: true
{0,19,34}
{1,7,20}
{2,10,12}
{3,22,31}
{4,5,28}
{6,9,14}
{8,25,36}
{11,21,35}
{15,27,33}
{16,29,38}
{17,18,23}
{24,26,37}
{30,32,39}