% hitori 517 by Otto Janko, http://www.janko.at/Raetsel/Hitori/517.a.htm
hitori
medium
12 12
17b26784ca9a
38474a531382
786a952a2c84
213c462b7852
195ab912a348
5cbab3a8991c
647a21c18b89
923184a9567c
c49837769551
8b1a59aa2363
9686673c314b
7c28186b4a35
