n: 40 m: 686 packed: 13 density: 0 nodes: 0 solveTime: 88300 buildTime: 270 solved: true
{0,11,22}
{1,12,19}
{2,4,5}
{3,8,9}
{7,30,33}
{10,13,18}
{14,27,32}
{15,24,38}
{16,23,34}
{17,26,29}
{20,21,39}
{25,28,37}
{31,35,36}