% slitherlink 508 by Otto Janko, http://www.janko.at/Raetsel/Slitherlink/508.a.htm
slitherlink
hard-
24 14
....23122..1322....3.2..
.22.....223...2312.11.3.
212..1.2...2231.3...2.1.
.2..22....2313..2.....2.
232..21.1...1.1.3132.202
2202..132...3...2.3113..
233..32......22...2.3..2
....01.1.12...22.2...2.2
...2023.22.3.....1..3222
2.......31.30222.2.2..3.
2....2223.2...1..22..1..
12.3331..1....3.2......2
..1.0.1..2.332...23...1.
.23333...2..122...131232
