% hashiwokakero 7 by Toshio Karino, http://www.janko.at/Raetsel/Hashi/007.a.htm
hashiwokakero
medium-
15 15
3...3.4...4...2
..1.....1......
.....1...1..3.3
......3.3......
3.........2...2
..3..5...4..3..
.1.2..2.2..3..3
...............
3..2..2.2..3.1.
..1..4...4..3..
3...2.........2
......1.1......
3.1..3...3.....
......1.....3..
2...3...3.3...2
