% hitori 524 by Otto Janko, http://www.janko.at/Raetsel/Hitori/524.a.htm
hitori
medium-
10 10
5a41765494
894151a613
7a1a6352a9
9678a21647
253a98376a
a1a7a49874
6989152174
529a848136
43121774a8
1454293687
