% slitherlink 151 by Oleg Andrushko, http://www.janko.at/Raetsel/Slitherlink/151.a.htm
slitherlink
hard-
24 14
.320..1323..3.0..0..1.3.
2......3...1..32.2..3.11
3..1....0...0.1.02..3...
3.23..1223.3..3..3...103
.....0............3.....
.11.1.2.3..20..0.2.0.20.
3..3.3.3..3..3..3.2.2..2
2..3.2.3..3..3..3.0.0..0
.01.1.2.2..02..1.1.3.21.
.....1............2.....
031...3..1..3.1313..23.3
...1..31.3.1...3....0..2
12.2..1.32..3...0......3
.1.0..0..1.3..0233..220.
