% hitori 506 by Otto Janko, http://www.janko.at/Raetsel/Hitori/506.a.htm
hitori
medium-
10 10
28a8779416
32652849a7
3256831664
5126894a36
a3944423a1
8a64173369
3938568286
676955a642
157a924586
4561a6762a
