% slitherlink 81 by Hirofumi Fujiwara, http://www.janko.at/Raetsel/Slitherlink/081.a.htm
slitherlink
medium
16 12
...0.22.1.2.23.3
303..0.2....2..3
2...3...32.1.21.
..1.2.1.1..3.2..
3.13...3.2.02.22
2...2.3..2....33
..2.3131....0..2
33.1....320.3...
22.2.21.0.....0.
1....013.1..1...
...3.1...3.3.3.2
31.1...312.2..11
