% slitherlink 424 by Otto Janko, http://www.janko.at/Raetsel/Slitherlink/424.a.htm
slitherlink
medium-
14 10
.2.3.3...3322.
.2.2....2.1.2.
31..3...22.2..
.2....2333..22
2..2.3.1.1.2..
223.3.22..3.3.
223...23...212
1..1..1..32...
22.1....213..3
32...22...2..2
