% slitherlink 512 by Otto Janko, http://www.janko.at/Raetsel/Slitherlink/512.a.htm
slitherlink
medium-
10 10
.1.1..1.2.
31..32..11
..0....0..
3..30.3..0
.0....3.3.
.1.3....3.
3..1.32..3
..3....3..
23..11..11
.1.3..3.3.
