% slitherlink 58 by Oleg Andrushko, http://www.janko.at/Raetsel/Slitherlink/058.a.htm
slitherlink
medium
9 9
1111..1.1
...1...11
1.1..1...
..111...1
.11..11..
1.1.1...1
..11...11
1.1.111..
.1.1.1.11
