% slitherlink 469 by Otto Janko, http://www.janko.at/Raetsel/Slitherlink/469.a.htm
slitherlink
hard-
24 14
.33.2.3.231.0..332.3.23.
2...0..1....3...0......0
1.13....3.3..0....3.13.1
..3.2.3...3..1...3...3..
.2..12...2.02..0....0.3.
..3..112..1..1..111.....
3...3...11..1..1...031.2
3.021...2..0..10...2...0
.....031..1..2..123..0..
.0.1....0..11.3...10..3.
..3...3...3..3...3.1.2..
2.12.1....3..3.1....12.2
0......3...2....3..2...1
.32.3.102..2.320.3.0.02.
