% slitherlink 691 by Grant Fikes, http://www.janko.at/Raetsel/Slitherlink/691.a.htm
slitherlink
medium-
18 10
101..112..022..023
..3..2......2..1..
..0..3..21..2..0..
3..33..3..1..31..1
.2....3..2......3.
.1......3..1....1.
0..22..3..0..02..1
..3..2..11..1..1..
..3..2......2..2..
212..102..220..333
