% slitherlink 773 by Palmer Mebane, http://www.janko.at/Raetsel/Slitherlink/773.a.htm
slitherlink
easy+
10 10
.20..20...
...20...20
20........
....20..20
20.2..2...
...0..0.20
20..20....
........20
20...20...
...20..20.
