% slitherlink 165 by Otto Janko, http://www.janko.at/Raetsel/Slitherlink/165.a.htm
slitherlink
medium-
16 12
.23.3.......1.2.
..32..232.3...13
...1.......12...
3.2...3.2.3.31..
...3.2..31.21...
.1.1.3..3.....3.
.....1.3.2..22..
.202......13....
..0..2..2.2.132.
..2.032.021.....
.3.22..3.32..03.
...2.3..2.2.3...
