% slitherlink 397 by Otto Janko, http://www.janko.at/Raetsel/Slitherlink/397.a.htm
slitherlink
unknown
40 30
...3.22..213.............1....23222...2.
.2..31......33.3..13....32.........2..12
..32...32.0....3.2..1..3.1.121.....21..2
.322.2.2.3.2322.221312.222.2...2.213...2
...1.0...2221...22.....2...1.121...3.1.1
3..3..3.2232.11..323.23111..3..1....2.3.
.2.2....1.1.3.....2..122.13..2...22.....
.21...223.2.....212.....3..22.12..2122..
.1.1.....11....21...12...11..2222112.13.
..23..2.3.2..3123...3..2.....2..31232.3.
........13..13...2.1..3..1..232...3..13.
..32..22.11....222313..32....3.3..1...3.
.3..2031.22123.3......23.13.21....2.22..
...3...1.2.22..3.....102....32..20......
..22212...2.1.2..313.2...0..22.2.23322..
.2.2...11.0.22..1...11...2....3..2221...
..2....3.3.2....13...2.21..21....0..1...
22.......2.2.12.1.2..1...2.23..33...1..2
...1.....1.1213.2.12.32...3....21..31.13
2..3....1.3..1..2...22...2.2232...2.3...
122132.2.2....2322..1333.3.213...3.212..
.3.13.31......1..31..2.1.2.22..2..2...13
22.1..2.3.2..3.3...221.1...13....22..02.
.1..1.....3.212.31.1.23....2.2..2212..3.
.221.2.13.11..2..2.22...2.23...2..2.21..
221..2.3.1...1......2..1311..3...232..1.
.21.13.......1.2.22212....3..22121.....2
......32.....1..32.....20.2......21....1
..3..2...020.13212...3.32.2.3.3..23.223.
.3.131.3.3...13.2..12.22.3....3.22.2.323
