% slitherlink 143 by Oleg Andrushko, http://www.janko.at/Raetsel/Slitherlink/143.a.htm
slitherlink
medium-
18 10
3...3...2...0...3.
.3...0...3...1...1
..11..20..21..21..
03..13..33..22..03
..2...3...2...2...
...1...1...1...3..
23..13..10..13..10
..33..23..33..03..
3...3...3...0...2.
.1...1...2...3...2
