% hashiwokakero 57 by Otto Janko, http://www.janko.at/Raetsel/Hashi/057.a.htm
hashiwokakero
medium-
25 15
.2....4............3.1...
........1..2..4...1.3.5.2
.2...2...................
..............4...3.....2
.2.3....5...4............
.....1.....2...2..4.1....
...4..........5....5..5..
............4....2..2....
....2.6.................4
...4.2......2.......4....
.5....5....4..5..3.......
.........................
...2..4.4.....2...1......
.4.......4..4..2....3.3..
1.2.3..............5....4
