% slitherlink 332 by Hirofumi Fujiwara, http://www.janko.at/Raetsel/Slitherlink/332.a.htm
slitherlink
very hard
16 12
0..2.2.311.3.13.
1..0.1.........3
.1..3.1.33..3.1.
2.1.1..1...0....
3...3..11.3....3
.1..13...23.32..
3..1....3...3.32
.13.31...1..1...
..3...3.3..3.1.3
.1.21..2.2...3..
3.3.....3.3.1..1
....333..12.3..3
