1. ## Grid

Below is a very special grid. Around each shaded number are 8 white squares. However, each white square should have a number from 1 to 7. Once filled in, these 8 numbers will sum to the shaded number. In addition, once completed correctly, no row nor column will contain a duplicate number within a white square. For example, the top row may be 5 6 4 2 3 1 7, etc.

A quality prize will go to the first correct solver!

2. ## Re: Grid

This one appears to be proving difficult so I've provided a little help below to get you started.

3. ## Re: Grid

It's certainly a "toughie" Rob. Is there meant to be a logical methodology for solving it, or is it going to boil down to trial & error?

Alan

4. ## Re: Grid

It certainly is a toughie, Alan which unfortunately requires trial and error for its solution. This type of puzzle is easy to construct but a @#\$!% to solve. I'll post another hint a little later ce soir.

5. ## Re: Grid

Here is hint#2. I've revealed the positions of all the 7s. Good luck.

6. ## Re: Grid

Morning Rob,
Your second clue narrowed my remaining possibles from 50+ to less than 10, so that made the trial and error not quite so daunting ....

<span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">
2 1 3 5 6 4 7
6 26 5 35 3 37 1
1 2 6 3 4 7 5
4 31 2 36 7 39 6
3 6 7 2 5 1 4
5 38 4 26 1 24 2
7 5 1 4 2 6 3
</span hide>

cheers
Andrew

7. ## Re: Grid

Well done, Andrew. I admire your perseverance. <img src=/S/clapping.gif border=0 alt=clapping width=19 height=23>

8. ## Re: Grid

So what is the "quality prize" for Andrew?

9. ## Re: Grid

A chance to have a go at Grid 2! <img src=/S/grin.gif border=0 alt=grin width=15 height=15>

10. ## Re: Grid

Wow! <img src=/S/laugh.gif border=0 alt=laugh width=15 height=15>

11. ## Re: Grid

I'll have a go at the grid if the entire grid has 9 squares with a number in the middle! <img src=/S/wink.gif border=0 alt=wink width=15 height=15>

12. ## Re: Grid

...and I'd still struggle! <img src=/S/confused3.gif border=0 alt=confused3 width=45 height=45>

13. ## Re: Grid

OK, forget the grid!

Try :

<table border=1><td> ? </td><td> ? </td><td> ? </td><td> 10 </td></table>

14. ## Re: Grid

ooh, it's a hard one that one.... let me get back to you Rudi.... <img src=/S/grin.gif border=0 alt=grin width=15 height=15>

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