% hitori 472 by Otto Janko, http://www.janko.at/Raetsel/Hitori/472.a.htm
hitori
medium-
10 10
3a595a3727
86974a5261
427341988a
17aa83a472
3738424199
a7246a8393
919a342566
27864517a4
3835712a66
7512298632
