% slitherlink 60 by Oleg Andrushko, http://www.janko.at/Raetsel/Slitherlink/060.a.htm
slitherlink
hard-
9 9
.3...3.31
..3..0...
3....2...
..221.1.2
2....3...
0..31....
..2...112
3..1202..
2.3.....1
