n: 40 m: 548 packed: 13 density: 0 nodes: 0 solveTime: 26950 buildTime: 180 solved: true
{0,13,25}
{1,30,34}
{2,6,23}
{3,11,26}
{4,8,19}
{5,12,14}
{7,9,22}
{15,21,36}
{16,20,24}
{17,29,31}
{18,32,35}
{27,37,38}
{28,33,39}