% slitherlink 313 by Hirofumi Fujiwara, http://www.janko.at/Raetsel/Slitherlink/313.a.htm
slitherlink
medium
16 12
1.2.22.1..0.3.1.
0....0.11.1.11..
.1.1......1...03
.3.1..3..13.1.1.
.12.1..0.0..3.1.
3.0.0.........0.
1.......0.110.2.
..312.03......2.
..2.......302.03
0.2.321.11..2...
1.0..1.....3..3.
..1..2.3.3..0...
