n: 40 m: 330 packed: 13 density: 0 nodes: 0 solveTime: 3120 buildTime: 60 solved: true
{0,15,33}
{1,6,16}
{2,18,19}
{3,9,21}
{4,25,35}
{5,17,22}
{7,28,39}
{8,11,37}
{10,26,27}
{13,32,34}
{14,30,31}
{20,24,38}
{23,29,36}