% slitherlink 64 by Hirofumi Fujiwara, http://www.janko.at/Raetsel/Slitherlink/064.a.htm
slitherlink
medium-
10 10
.02.23.31.
1..1..2..3
3..0..1..1
.13.11.32.
1..2..3..1
3..2..3..0
.21.21.13.
3..3..2..3
1..2..2..2
.02.31.23.
