n: 40 m: 377 packed: 13 density: 0 nodes: 0 solveTime: 6890 buildTime: 80 solved: true
{0,17,38}
{1,28,34}
{2,31,33}
{4,18,35}
{5,6,20}
{7,16,19}
{8,21,36}
{9,14,22}
{10,26,32}
{11,24,29}
{12,27,30}
{13,25,37}
{15,23,39}