% hashiwokakero 131 by Otto Janko, http://www.janko.at/Raetsel/Hashi/131.a.htm
hashiwokakero
easy+
11 11
.1...2.2..3
1.2.3.3..2.
...1....2.3
4.7..3.1.2.
....2.4.3..
2.........2
..4.4.4..1.
3..1.3..6.4
..1........
3...1.1.4.2
.1.2.3.2.1.
