% hitori 297 by Otto Janko, http://www.janko.at/Raetsel/Hitori/297.a.htm
hitori
medium-
10 10
2992756212
572978416a
7961a47587
a545932368
847596a392
93a6431273
33792a3896
6264867253
4516628a39
8187436929
