% hashiwokakero 38 by Otto Janko, http://www.janko.at/Raetsel/Hashi/038.a.htm
hashiwokakero
medium-
15 15
3......1.2..4.3
..1.4.....2....
4..1...........
....2.......3..
4.........4....
..1..3..2......
...............
..3..5...1.....
.2.4...1.......
..............2
3..7.5.4.3.....
.2.............
.....2..1.2...2
.4.4.....4.2...
3....5......4.3
