The New Sudoku Players' Forum

[tonyjer]

Hi Everyone

Happy Christmas to one n'all.

Can someone briefly scan this grid and tell me if there is an opportunity to use simple colouring method (cojugate cells sharing same colour in same group/remote candidates)

Many thanks

Anna, Antonio y Eduardo Felipe

Code: Select all

         3   3         3   
                       
         3            3   
         3               3
      3      3            3
      3                  3
   3               3     
                       
   3   3            3     



[RW]

tonyjer, you'll have to repost that grid so that it clearly shows which candidates are lined up in the same column and where the boxes are. The grid you posted is quite impossible to read.

RW

[udosuk]

Thanks gsf...

Code: Select all

  .  .  .  |  3  3  .  |  .  3  .
  3  .  .  |  .  .  .  |  .  .  .
  .  .  .  |  3  .  .  |  .  3  .
-----------+-----------+-----------
  .  .  .  |  3  .  .  |  .  .  3
  .  .  3  |  .  3  .  |  .  .  3
  .  .  3  |  .  .  .  |  .  .  3
-----------+-----------+-----------
  .  3  .  |  .  .  .  |  3  .  .
  .  .  .  |  .  .  3  |  .  .  .
  .  3  3  |  .  .  .  |  3  .  .

[gsf]

I believe this is what they try to show:

Code: Select all

  .  .  .  |  3  3  .  |  .  3  .
  .  .  .  |  .  .  .  |  .  .  .
  .  .  .  |  3  .  .  |  .  3  .
-----------+-----------+-----------
  .  .  .  |  3  .  .  |  .  .  3
  .  .  3  |  .  3  .  |  .  .  3
  .  .  3  |  .  .  .  |  .  .  3
-----------+-----------+-----------
  .  3  .  |  .  .  .  |  3  .  .
  .  .  .  |  .  .  .  |  .  .  .
  .  3  3  |  .  .  .  |  3  .  .

This puzzle is not valid because you don't have any 3s in box 1, box 8, r2, r8 and c6...

clues at r2c1=3 and r8c6=3 could have left the 3's in this state, no?

[udosuk]

Thanks to gsf, I edited the post above... Here is what the grid would look like after the obvious box-line elimination in r9c3:

Code: Select all

  .  .  .  |  3  3  .  |  .  3  .
  3  .  .  |  .  .  .  |  .  .  .
  .  .  .  |  3  .  .  |  .  3  .
-----------+-----------+-----------
  .  .  .  |  3  .  .  |  .  .  3
  .  .  3  |  .  3  .  |  .  .  3
  .  .  3  |  .  .  .  |  .  .  3
-----------+-----------+-----------
  .  3  .  |  .  .  .  |  3  .  .
  .  .  .  |  .  .  3  |  .  .  .
  .  3  .  |  .  .  .  |  3  .  .

I can't see any move from here based on the pattern of 3s only...

[RW]

Good work udosuk! I almost got there, but I didn't see the possibility of column 1 being empty. Should have figured that out.

RW

[tonyjer]

Appreciate the help and apologies for the delay in replying but had a bit of a family crisis. (now thankfully resolved)

Believe it or not, my biggest problem is posting the grid!!

I have followed the sticky advice but never seem to get the grid lines and the numbers are always all over the place.

I just create a table in word (new courier font) and apply that to the post using the code buttons.

Am I doing something wrong?

Sorry to be an idiot and thanks for your help again.

Anna, Antonio y Eduardo Felipe

[RW]

I just create a table in word (new courier font) and apply that to the post using the code buttons.

Am I doing something wrong?

Try doing it without using a table in word. Just set the new courier font and type in the grid so that all columns are aligned. What you see in word will look exactly like the code block on this forum. I usually use notepad which always has a fixed sized font. After pasting the grid to your message, look at the preview!! If you see that some columns aren't aligned, edit your post until they are. Also, please enter dots in all cells that don't have any relevant information, just to show where the other cells are.

RW

[udosuk]

I use Notepad (with Fixedsys as the font) to enter those grids... Believe me it's not more fussy than using Word/Excel etc...

If you insist to use Word/Excel tables to input the data than remember to put in a dot for all the blank cells before you copy & paste the grid to Notepad, then use the "Replace All" function to replace all tab characters (you can copy & paste the tab character into the "Replace" window)... And finally you can copy & paste the whole thing into your reply posting window...