A dot means that the two neighbouring digits are consecutive. All dots are in the grid.
Solution code: Column 1, followed by row 5.
on 4. January 2023, 05:12 by Nick Smirnov
CtC-app:
https://tinyurl.com/mu7fb5n3
on 26. June 2011, 11:08 by Oliver Strauß
Thank you Richard. Fantastic "basic" puzzle which brought to me a lot of fun and brought a lot of work for my printer. Now I have to try all your other "basics".
on 27. May 2011, 14:52 by ibag
Nice one, thank you!
on 27. May 2011, 11:34 by Richard
I can imagine that some people will need T&E to solve this puzzle. It is solvable by logic alone. I have written a hidden comment with the logical start into the puzzle. Good luck! ;-)