% slitherlink 72 by ?, http://www.janko.at/Raetsel/Slitherlink/072.a.htm
slitherlink
medium-
10 10
.1..13..3.
32.3..3.02
..........
.3..33..3.
2..2..0..2
1..0..3..1
.3..30..0.
..........
33.1..2.32
.0..02..1.
