% hitori 615 by Otto Janko, http://www.janko.at/Raetsel/Hitori/615.a.htm
hitori
unknown
12 12
7647b172872a
2b74383b5b16
c14765643184
18a593c52651
757ab29b8978
c3968c7a4121
a71751b57cc3
6c713799b512
745a2b6aab76
1735c59832b4
7b2646759c27
5ac2b98a1b6b
