Each of the digits 1-9 does appear twice in the blue marked cells.
Solution code: Row 6, followed by column 5
on 5. September 2020, 02:50 by cdwg2000
If there is no additional area, it is still the only solution, and the solution is not complicated.
on 3. April 2011, 16:33 by AnnaTh
Aries! My sign of the Zodiac! So of course I had to solve it! Hat sehr viel Spaß gemacht!
on 1. April 2011, 18:25 by RobertBe
Very nice idea!
on 1. April 2011, 17:14 by Richard
Interesting killer! I am looking forward to the next 11 to complete the zodiac! ;-)
on 1. April 2011, 11:21 by Mody
very nice :)
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