% slitherlink 75 by ?, http://www.janko.at/Raetsel/Slitherlink/075.a.htm
slitherlink
medium-
10 10
13.21.231.
..1...0...
3..0.3.2.2
3..3..1..0
..2..0....
....1..3..
0..3..2..3
2.1.2.2..2
...3...3..
.201.31.01
