n: 40 m: 554 packed: 13 density: 0 nodes: 0 solveTime: 33230 buildTime: 180 solved: true
{0,5,27}
{1,34,36}
{2,8,15}
{3,11,16}
{6,13,18}
{7,12,37}
{9,14,28}
{10,22,26}
{17,23,33}
{19,29,30}
{20,24,31}
{21,32,38}
{25,35,39}