% slitherlink 722 by Otto Janko, http://www.janko.at/Raetsel/Slitherlink/722.a.htm
slitherlink
easy+
10 10
2232..2.31
..2.1.....
1..3.1....
...021.0..
1......3..
..3......3
..0.220...
....1.1..2
.....3.2..
02.1..3322
