n: 40 m: 480 packed: 13 density: 0 nodes: 0 solveTime: 13420 buildTime: 140 solved: true
{0,15,27}
{1,10,14}
{2,11,13}
{3,8,38}
{4,5,31}
{6,19,39}
{7,33,36}
{9,12,37}
{16,32,35}
{17,22,24}
{18,29,34}
{20,21,30}
{23,25,28}