n: 40 m: 338 packed: 13 density: 0 nodes: 0 solveTime: 3760 buildTime: 70 solved: true
{0,5,28}
{1,21,31}
{2,20,37}
{3,15,18}
{4,8,22}
{6,24,30}
{7,23,39}
{9,10,26}
{11,12,19}
{13,27,36}
{16,35,38}
{17,25,34}
{29,32,33}