Orthogonal neighbouring cells cannot contain consecutive digits.
The digits on the grey lines are ascending from one end to the other end.
Solution code: Column 1, followed by row 7.
on 4. March 2023, 19:49 by Nick Smirnov
CtC-app:
https://tinyurl.com/2p83snus
on 30. November 2010, 22:22 by Oliver Strauß
Richard, thank you for this nice puzzle. I had a lot of fun to solve it.
on 27. November 2010, 20:56 by ibag
Jetzt gehts aber los: Das hatte ich schon gestern nachmittag gelöst und einfach vergessen, es einzugeben. ;-) Schönes Rätsel!
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