n: 40 m: 465 packed: 13 density: 0 nodes: 0 solveTime: 13420 buildTime: 130 solved: true
{0,19,21}
{1,26,38}
{2,11,23}
{3,14,27}
{4,22,34}
{5,6,8}
{7,12,18}
{9,35,36}
{10,24,32}
{13,25,39}
{15,31,33}
{16,20,29}
{17,28,37}