% slitherlink 399 by Otto Janko, http://www.janko.at/Raetsel/Slitherlink/399.a.htm
slitherlink
unknown
40 30
.....1.22.32..33..3.....2..3..32.33.2...
233..2.1.2...2.0...12.32..221..3....33.3
1...22..32.0..3......3....2..32..2.102..
.33.3........2..13.....223..2......2...3
2..2.22.3120.222.3.3.20.212....2..2..3.3
.312...2..32.3..0211...3.1..10..3...23..
2.2.32.2.122.1.2..2....112...2..1.......
....3..0...13.............021...32312..2
.33....2...2211.2.332.1..322...1.2...13.
.2.31...12..2223..212.1.12.1..2.221.0..2
.........1...2.12....3..2.22..02.3.2....
..222.12.32.1.22..22.2112222..232..1213.
2..21..33....3..3.31..22.12..2...322....
3.22.220.122..2..123.32....1.2.3.3..22.3
.33..1.2.1.3.3.......22.2..23...0.11.23.
....222..2...2121.22...1.1....22.3.....0
..3.2.22..12.3...12.1.1.3.22.2.0...2..3.
.2.1...01.22..121.22122.2....10.3.2.....
.3.3.2..3.1223...20.2....2321...0....2.2
.3.2213.12.23.....1.2..1.3...2.3..1313.1
.2.....1.3.1..30.3...223.20.223.....1..3
1.0....3...2.....0.0...........1....2..3
2....2..3..3..3.3..2...2...2.2..133....3
..132..2..31.2....2.32..22...21....2122.
.2...3.21..3...32..1...11.21..31..323...
21.2..2.22.2.2..2....3..122.1222......22
.3..2......3.2...11..1.2.3..2.1.3.23..3.
3.21.221.222.2...3223..1.1.21..1..2..2.3
2..3..1..1..3......2213...3.2......22.2.
....1..1..3312..13.2.32.2132..3213.3.2.3
