% slitherlink 602 by Luke Pebody, http://www.janko.at/Raetsel/Slitherlink/602.a.htm
slitherlink
medium-
10 10
...222..23
321.2.1..1
.12.1122..
22..3230..
..22.1.2..
1..2..212.
..13..11..
..2.0...2.
....3.123.
3.31.23...
