% slitherlink 406 by Otto Janko, http://www.janko.at/Raetsel/Slitherlink/406.a.htm
slitherlink
medium-
10 10
3222332.2.
22.1...2.2
.2223.1112
.32.123323
..3..2..22
22......3.
3.31...22.
.1...1..23
.12..1.1.3
.2..3332..
