% slitherlink 442 by Otto Janko, http://www.janko.at/Raetsel/Slitherlink/442.a.htm
slitherlink
medium-
10 10
22.233..2.
....1.121.
.1.3.2..2.
3.21.1.3..
....22.0..
..21..3.3.
...3...3..
21....212.
2..2212...
.3...1..32
