% hitori 561 by Otto Janko, http://www.janko.at/Raetsel/Hitori/561.a.htm
hitori
easy+
10 10
9789a1a631
5872137993
61a429a567
9a98854366
8636a52458
4336829241
69751a9158
54a3695a96
459736123a
82aa332875
