% hashiwokakero 40 by Otto Janko, http://www.janko.at/Raetsel/Hashi/040.a.htm
hashiwokakero
medium-
15 15
.2.........2.1.
..2..3.2.4....4
1..............
.4.......5.4.2.
...............
..2.....1..3..6
2..............
..4......6..5.5
...1.3..2..2...
..2....2.......
.5.4....1......
.......4...3...
...1........1..
.3...4.3.......
2.3......4.2..2
