% slitherlink 655 by Otto Janko, http://www.janko.at/Raetsel/Slitherlink/655.a.htm
slitherlink
medium
17 17
...2323..2...22..
..1...13.........
2.3213.3..2.2222.
3...2.03.31.2.112
........13...332.
.13.31..3....12.2
..21.12.22.....20
32.222232..1.....
.1322.2..231...2.
.1....21.2.12....
....2.32223.22.02
.21.2311.2.2.3...
..11.21123....222
.3332.23.213..322
.2021321.1.2.12..
..2322.2.2.3.2.22
.232..22.....23..
