n: 40 m: 680 packed: 13 density: 0 nodes: 0 solveTime: 134330 buildTime: 270 solved: true
{0,27,39}
{1,5,6}
{2,11,36}
{3,4,20}
{7,28,38}
{8,14,19}
{9,24,32}
{10,12,17}
{13,31,34}
{15,30,35}
{16,22,37}
{18,21,29}
{23,26,33}