% slitherlink 491 by Hobbit's Room, http://www.janko.at/Raetsel/Slitherlink/491.a.htm
slitherlink
medium-
10 10
11...21..2
..3.1..0.2
.3.2....3.
2...1..2..
2.....2.3.
.3.3.....1
..0..3...3
.3....1.2.
3.1..0.2..
2..13...31
