% slitherlink 309 by Hirofumi Fujiwara, http://www.janko.at/Raetsel/Slitherlink/309.a.htm
slitherlink
medium-
14 10
..3.0.3.21.1.1
1......21.23..
..302.2..1..03
2....12.1.3...
1....2.....2.0
2..3.1.1.12..1
3.3.3...3.....
2..1..1.1...0.
.1.3.023..3...
23.3.....1.3.1
