% hashiwokakero 171 by Otto Janko, http://www.janko.at/Raetsel/Hashi/171.a.htm
hashiwokakero
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11 11
.2..2.2.3.2
1..........
.3.3..5.6.4
3.1........
...3.1.2.3.
.2..2.2...2
3.2..1.5.6.
.1.1......2
2.6.6..3.4.
..........1
1.4.5.3..2.
