% slitherlink 71 by ?, http://www.janko.at/Raetsel/Slitherlink/071.a.htm
slitherlink
easy+
10 10
....22....
..33..33..
..0....0..
21..13..30
2..3..0..2
1..3..3..2
20..20..23
..3....2..
..03..03..
....11....
