% slitherlink 383 by Otto Janko, http://www.janko.at/Raetsel/Slitherlink/383.a.htm
slitherlink
hard-
20 15
...3.....32........0
22213...23...2121222
2....1222..2.1.3..22
21...222.1221.3..2..
.3....1..13.........
3221...2..3.3222.33.
.2.32.12.21...2.1..1
.2.21.111..3.2.3332.
...2.1..2.2..13.2...
.31.2..2....3......2
.2.3.222.11...3.1.3.
.3.313122.2..2.2...1
..2.2.2...122121.2..
.2.22.221....2...1..
......2.312.3...32..
