n: 40 m: 346 packed: 13 density: 0 nodes: 0 solveTime: 4800 buildTime: 70 solved: true
{0,8,24}
{1,20,31}
{2,11,21}
{3,29,39}
{4,28,35}
{5,19,30}
{6,26,33}
{7,12,23}
{9,32,38}
{10,14,16}
{13,34,37}
{17,27,36}
{18,22,25}