% hitori 613 by Otto Janko, http://www.janko.at/Raetsel/Hitori/613.a.htm
hitori
unknown
10 10
659a3917a6
736827359a
411a657364
7847a35616
5376953843
6958685a64
2634178957
814749a73a
a685161123
9733576452
