% hashiwokakero 303 by Otto Janko, http://www.janko.at/Raetsel/Hashi/303.a.htm
hashiwokakero
medium-
13 13
.4.4.4..3..3.
1........1..1
.3.5.6..4..3.
2.2.1..2.2...
...2..1.1...2
2.3.3..3.3.2.
.............
.2..4.2.3.3.3
2........1.1.
.3.2.1..2.1.2
....2..4.7.4.
1..2.1......1
.2..3..3.3.2.
