% slitherlink 635 by Luke Pebody, http://www.janko.at/Raetsel/Slitherlink/635.a.htm
slitherlink
medium-
10 10
..1.322...
23..2.3...
3.02...22.
.3.22.3..3
.....2121.
.3....2.22
...2...3..
3.311.1212
.2....12..
2..2.33.3.
