% slitherlink 343 by Hirofumi Fujiwara, http://www.janko.at/Raetsel/Slitherlink/343.a.htm
slitherlink
hard-
20 16
1.........12.312..3.
1..1011.2...1.....10
111...1.120..0.10...
...1.1.1..1.2..21.33
1.32.2.1...11.......
...3.....0.1.10.....
..132...3..23.1..1.3
3.....1..3...1..01..
30.3...3..1..3.2....
...3131..1..1.3...21
.........3....3.2.3.
2.31..0.3.031...30..
1....1.......1.....3
...2..2.11.13.....1.
.202.11.33.3...333..
3.2..0..1....3.1.0.0
