% hitori 464 by Otto Janko, http://www.janko.at/Raetsel/Hitori/464.a.htm
hitori
medium-
10 10
8145a378a7
2154843a67
9734286611
727a335a93
377649485a
5a61542943
19121a4516
1813459572
46a7928315
8493418427
