% slitherlink 589 by Luke Pebody, http://www.janko.at/Raetsel/Slitherlink/589.a.htm
slitherlink
medium
19 16
..3..3....1.33.....
2.2..1.231.3022....
..12.22..212.32.3.2
13...12.1...12..123
2..221.1.3...2222..
223...3..1...022332
3..2212.23.3...11..
31.2....21.1..222.2
32.33.121223..221.3
302.1..3231.2.2.23.
3.3.3.....2.....112
2...222.32220.22..2
..213...1...23...2.
...223.0132.2.2021.
2322..11..1......23
..222.323..12.2.2..
