% slitherlink 563 by Otto Janko, http://www.janko.at/Raetsel/Slitherlink/563.a.htm
slitherlink
medium-
10 10
2.3.32.3.3
.3.2..3.2.
2........3
.2.3.23.2.
3..2.....1
1.....2..1
.3.23.0.1.
3........1
.3.0..3.3.
1.1.33.1.3
