% slitherlink 157 by Oleg Andrushko, http://www.janko.at/Raetsel/Slitherlink/157.a.htm
slitherlink
hard
24 14
22.3.3.0.3.12.3.2.0.2.12
...3.1..1......2..2.0...
.01......31..12......13.
.....32..........33.....
2..3....0..03..1....0..1
3..3.13.2......2.31.3..1
.0..1..2..3..3..0..1..0.
.2..1..0..3..3..2..2..3.
3..0.31.3......1.33.3..1
3..3....3..30..2....1..2
.....30..........13.....
.12......33..01......10.
...3.0..2......3..0.3...
11.1.2.1.3.31.3.0.3.1.20
