% slitherlink 687 by Grant Fikes, http://www.janko.at/Raetsel/Slitherlink/687.a.htm
slitherlink
hard
24 14
2..1....23......1..2....
1.2..0.3..131.33.3.2.011
...2.....3......2.1.....
..20.2.3.3.0.12....1111.
1......2.1....02..2.....
..1.121..2.2.....2..3..2
21.....1.0.1.2...0.2...1
1...3.1...2.3.3.3.....22
2..3..1.....1.3..112.3..
.....1..30....2.3......3
.2131....22.3.1.3.3.12..
.....1.1......3.....1...
323.1.1.02.221..1.3..1.3
....2..3......12....1..3
