% slitherlink 559 by Luke Pebody, http://www.janko.at/Raetsel/Slitherlink/559.a.htm
slitherlink
hard-
19 16
3.2.....3.322..3.3.
..21.3.31.1.2..21..
3.33...22...1.21.22
32.2.23..23...22..3
...32.3.3...2...312
3.2.32.1.233.222...
..3.2..22.11..3..3.
.....3.2.22....2.1.
..0.2..11.212.23.3.
..1.....1...2.22213
13...23.23........3
.2.2..222...2.....2
.3..212.2.2.2.3..22
...20..3.20.2..1.23
....2..1..223232...
3.23..3..132.2222.3
