20
.6...
.4...
31...
.25..
.....

4....
1365.
...2.
.....
.....

..45.
.31..
62...
.....
.....

..6..
5421.
.3...
.....
.....

3....
51...
.6...
.42..
.....

.4...
.1...
523..
.6...
.....

.3...
.1...
254..
.6...
.....

.1...
4356.
...2.
.....
.....

..3..
216..
..54.
.....
.....

.5...
.1...
643..
..2..
.....

4....
156..
..23.
.....
.....

.1...
6435.
..2..
.....
.....

..61.
524..
.3...
.....
.....

.3...
.26..
.1...
45...
.....

.6...
.5...
13...
4....
2....

.2...
.36..
14...
5....
.....

..3..
.65..
21...
.4...
.....

.2...
51...
.63..
..4..
.....

...2.
4316.
5....
.....
.....

..1..
.562.
43...
.....
.....