% slitherlink 633 by Luke Pebody, http://www.janko.at/Raetsel/Slitherlink/633.a.htm
slitherlink
medium-
10 10
.23.1.....
.21.232..2
2......2.3
.....2.3..
.32..20.32
32.21.2.3.
.....22...
3.13..1..1
121.0.2.3.
....23....
