% slitherlink 494 by Hobbit's Room, http://www.janko.at/Raetsel/Slitherlink/494.a.htm
slitherlink
medium-
10 10
11......21
..10..22..
23..11..12
..1....1..
1..1..3..1
0..3..0..0
..1....1..
11..22..21
..02..31..
12......11
