% slitherlink 609 by Luke Pebody, http://www.janko.at/Raetsel/Slitherlink/609.a.htm
slitherlink
medium
19 16
233332...........1.
.1....323.323.213..
2.....1.21..2..3...
.2032.1.3223..122..
......12.1.111.33..
.21131..32.2.2.1...
2.1.....2......32..
2...02.3111....1...
..1.3...2.1...222..
..1.12.3..222..302.
..1.3.21.2..2.1...2
.3222..2...1..3...3
..1....1213.2..1.13
12121...21.2.3.1..2
2.2...122..2213.2..
.....3.22...2..12..
