n: 40 m: 346 packed: 13 density: 0 nodes: 0 solveTime: 5940 buildTime: 80 solved: true
{0,14,18}
{1,21,32}
{2,3,12}
{4,6,33}
{5,7,22}
{8,10,29}
{9,28,36}
{11,25,37}
{13,20,31}
{15,30,35}
{16,23,39}
{17,24,27}
{19,26,38}