% hashiwokakero 170 by Otto Janko, http://www.janko.at/Raetsel/Hashi/170.a.htm
hashiwokakero
medium-
11 11
2..3.2.2..2
....1.2..2.
2..2......2
.1...1.2.3.
2...5.6.2.2
.2.2...2.2.
3.2.5.2...1
.1.2.....1.
4.2..2.2..3
....1......
2..4.4..2.3
