% slitherlink 52 by Oleg Andrushko, http://www.janko.at/Raetsel/Slitherlink/052.a.htm
slitherlink
hard-
9 9
12.3....1
..3..23.1
....11...
1.12.2.22
.......1.
23.21...2
...2.....
.3.112.32
32223.2.3
