% hitori 264 by Otto Janko, http://www.janko.at/Raetsel/Hitori/264.a.htm
hitori
medium-
10 10
a19954332a
4391738265
95a5263578
4a75237178
6977174a32
55142a9588
742797a621
356a88a417
1658627326
6863a12943
