SudoCue Users

Ruud, you're right. in fact, all my "solutions" were wrong, since I hadn't checked back all the 9 blocks. They are really hard to solve.

I don't know how you did it, because it seems terribly difficult to prove how to block the numbers so that the solution exists and is unique. Is it just trial and error ? In any case, congratulations, and thanks ! I managed to solve it in about an hour, and enjoyed it. In case anyone wants the solut...

Is it possible that there are many solutions to the Clueless special 6 ?
Maybe I'm wrong, but I think I found 8 and stopped the search, there maybe more.
I can send some PDFs with sols if you want.