% slitherlink 385 by Otto Janko, http://www.janko.at/Raetsel/Slitherlink/385.a.htm
slitherlink
hard-
20 15
.22.11...22.1.332223
322.2.31...2230.1...
3..1...231.....3..12
...2..3....2.311...2
.2......2.2......2..
.3.231.3.12...2...2.
2..0.1.1.2....21..32
..2322..2...121222..
2......113.3...312.2
...3..2323..2..12212
21..3..3..3...2.122.
3.3.3....21.1322....
..22..2...213.2....3
.3..2....22...21..3.
22....20..2.3......3
