% slitherlink 607 by Luke Pebody, http://www.janko.at/Raetsel/Slitherlink/607.a.htm
slitherlink
medium
19 16
....02.....1.222223
22.0..2...21222.1.1
2.23.2.23...222...2
1.22...3.31...212..
.223..2..2..1..3.2.
..2...3.33.2.212212
.2....2121.2.32....
.02...2.2.21..112..
3..32..2..322..12..
.122.3.1.202..2.3..
..2..2.23.2...321..
223..22.21313...2..
21...132.12..1.3..3
..22.3....3.12.32.3
222...122121..0.1.2
..22..32223..23333.
