% slitherlink 739 by Otto Janko, http://www.janko.at/Raetsel/Slitherlink/739.a.htm
slitherlink
medium
16 12
33..0.3.2131..3.
2..1.......321.0
23..3.1.12.....1
2...3.2.....2..2
1......1213.1.32
.....3....3.2.1.
.3.1.2....1.....
23.3.3133......1
2..1.....0.1...2
1.....31.2.2..33
2.202.......2..2
.2..1223.3.3..23
