% hitori 598 by Grant Fikes, http://www.janko.at/Raetsel/Hitori/598.a.htm
hitori
hard-
12 12
4111a2229bc3
82c49135b6a7
53338444ac1b
b82a9c17b3b5
7555c6661939
a4a815a3b7c6
67774888392b
9a46b352c198
219b36cc4a7a
c6a3b7c1c859
198929ba7964
c361ba79c24c
