% slitherlink 334 by Hirofumi Fujiwara, http://www.janko.at/Raetsel/Slitherlink/334.a.htm
slitherlink
hard
16 12
..131...3...011.
3.1..3.3.12....2
.3.1..11..13..2.
1..32..1....13.1
.1..1.3.20.3.12.
31.1..31...1.0.3
..213....1.1..1.
...1..0..1...3..
1..21.2..221.3.1
.3.....3...31.3.
1.0.2.1...2.2.22
3...2.3.11312...
