% slitherlink 628 by Luke Pebody, http://www.janko.at/Raetsel/Slitherlink/628.a.htm
slitherlink
medium
19 16
.32...23......2322.
2..3.3...2.....2...
...111...2.2..22..2
.22332222...3..2.22
...1......2021..3..
.22.2.1123223...1..
.21....22...2.2.23.
.1.3.322...10...123
...1...1.03.222.2.2
113....3.2.122..02.
.2.021...22..22.322
.......20223.3.1.12
.22.222..2.....23.2
.12..1..222.....3..
.3.32131..3223....3
.....1..32....1..1.
