% slitherlink 319 by Hirofumi Fujiwara, http://www.janko.at/Raetsel/Slitherlink/319.a.htm
slitherlink
hard
16 12
.1.0.3.1..1..0.3
1....0..11.0.1..
.3.21.3......1..
1....1.1...2.132
..2....1..101.13
3..3.110.2....2.
..2....23..201..
110.1.......2.13
.......3333..2.2
1..3.1..1..2....
..1.2.33.211.103
21..11......3...
