% slitherlink 515 by Otto Janko, http://www.janko.at/Raetsel/Slitherlink/515.a.htm
slitherlink
medium-
10 10
.2.2.2.2.2
3.3...2.3.
.3..3..3.1
0..2....1.
..1..32..3
3..13..2..
.2....3..2
3.2..1..3.
.3.3...2.2
1.1.2.0.3.
