% slitherlink 716 by Grant Fikes, http://www.janko.at/Raetsel/Slitherlink/716.a.htm
slitherlink
medium-
18 10
.1.1.1.1...2.3.2.2
.0.2.2.2...3.3.1.1
.2.2.1.3...3.3.2.1
03122230..22110122
..................
..................
13121221..30321322
0.2.2.1...2.3.2.2.
1.3.3.3...2.1.1.1.
3.1.1.1...0.2.2.2.
