Radio Times Suduku - Newest issue - Julie Walters on cover.

[Lynn_M]

Anyone out there had a shot of completing the above su-duku puzzle? I've filled in lots of boxes, but failed to complete it. Am I hopeless at su-duku, or is this particular puzzle unsolvable (i.e. without cheating)?

Or, if it's a tough puzzle - and once you've filled in all the boxes that you've narrowed down to one number - are you supposed to take a chance with a box that's narrowed down to two numbers and pick either A or B, then follow that route and hope for the best?

I'm confused. I was unable to complete the Radio Times su-duku puzzle that came out just after the Christmas issue, the one with Chris Evans on the cover, so I suspect they have a lazy compiler who doesn't bother to get someone to check if it's solvable.

The Radio Times puzzle is somewhere in the back pages.

[squarebear]

You could try entering it in one of the many automatic sudoku solvers out there. Google sudoku solver for more details.

[gen2]

They don't need to have people to check if they are solvable - they are created by computer to have a unique solution. Most magazines/papers grade them according to the depth of logic required to solve them.

And No, you shouldn't need to guess to achieve a solution.

Sorry I can't help with this specific one as I don't take the RT.

[BilSuth]

I have the solution to the RT one. With 28 numbers of a start, I would put it at average difficulty. In my opinion, 33 numbers or more is an easy one, 23 or fewer is hard. There is always a single solution, although occasionally I have copied the grid out and tried A (or B). If it works out, fine; if not, it must be the alternative. If it works with A, you should copy the grid and try B - and you'll see that one DOESN'T work and there is only one solution.
I could give you more basic tips if you want to post your e-mail address or ask me for mine.