% slitherlink 56 by Oleg Andrushko, http://www.janko.at/Raetsel/Slitherlink/056.a.htm
slitherlink
hard-
9 9
.222...20
.11.2..22
2.1.1..1.
2.2..2323
1...2.2..
22..3.12.
..1.21.2.
1.32.1213
.1.131.32
