% hashiwokakero 153 by Otto Janko, http://www.janko.at/Raetsel/Hashi/153.a.htm
hashiwokakero
medium-
13 13
3..2.2.2.2..2
......1.3..3.
4..6.7.3.1...
.1..1...1...2
1....5.4.5.4.
.5.4........2
2....4.4.....
...1.....5.4.
.4..4..4....2
...........1.
2.1..3.6.5..2
.2..2.1......
2.3..3.5.5..1
