% slitherlink 318 by Hirofumi Fujiwara, http://www.janko.at/Raetsel/Slitherlink/318.a.htm
slitherlink
medium
16 12
.3..22....323.1.
3.1..0122.1.1.22
.3......3....1..
1.1.2121.1.0.3..
........20....12
3..03.1.2...10.3
......0..33..1..
.3.12...1...2.12
.2.2.2.2.1.3.1.3
33.222.3..2.3...
......0.1.3.11.1
12.1.3.21..0..1.
