% hitori 463 by Otto Janko, http://www.janko.at/Raetsel/Hitori/463.a.htm
hitori
medium-
10 10
189622aa75
2a12826372
a783472a51
3635217917
27a7215649
8771a5a476
634752942a
69321418a3
5a293a446a
925216aa37
