% slitherlink 247 by Warai Kamosika, http://www.janko.at/Raetsel/Slitherlink/247.a.htm
slitherlink
medium
18 10
31..2..221323.2222
2112023..2.11113.2
.22..221.211..2.1.
.122.2.11.3.3.3112
..2222332211.121.3
2.122.2213232211..
2212.2.2.31.2.111.
.3.3..131.213..22.
2.12122.0..2203132
3122.222233..2..32
