% hitori 77 by Otto Janko, http://www.janko.at/Raetsel/Hitori/077.a.htm
hitori
very hard
17 17
459gf3egb861c728d
3a9ge552af8bbddc6
3a26gff718d4455e9
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beaa69gc87344552c
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ggf4887c6deea9352
56ee77a922cc8g33f
ggee773bcc2259f6a
99481dc6eeb522g37
2dc3cg8a759f66a4e
b359a4d1d497ff69g
7882b4dfd45a3ac9g
