The New Sudoku Players' Forum

[skibum]

This is a puzzle from the pappocom computer program. I have studied it for hours and cannot find the next logical move. Can anyone help? Thanks.

2----17----8----67----9----5----3----4----16

456----467----567----1----34----37----2----9----8

14----3----9----46----2----8----1567----167----156

149----1479----17----2349----134----6----8----5----1234

8----5----3----24----7----12----9----16----1246

1469----2----16----8----5----139----17----137----134

1359----19----125----2379----6----12379----4----8----1359

7----169----1256----239----8----4----156----136------13569

1369----8----4----5----13----139----16----2----7

[bennys]

Code: Select all

+-------------------+-------------------+-------------------+
| 2     17    8     | 67    9     5     | 3     4     16    |
| 456  *467   567   | 1    *34    37    | 2     9     8     |
| 14    3     9     | 46    2     8     | 1567  167   156   |
+-------------------+-------------------+-------------------+
| 149  *1479  17    | 2349 *134   6     | 8     5     1234  |
| 8     5     3     | 24    7     12    | 9     16    1246  |
|^1469  2     16    | 8     5    ^139   | 17    137   134   |
+-------------------+-------------------+-------------------+
| 1359  19    125   | 2379  6     12379 | 4     8     1359  |
| 7     169   1256  | 239   8     4     | 156   136   13569 |
|^1369  8     4     | 5     13   ^139   | 16    2     7     |
+-------------------+-------------------+-------------------+

^ x-wing on 9
* x-wing on 4

[skibum]

that I can eliminate the 4's in the other cells of columns 2 and 5, and the 9's in the other cells of columns 1 and 6. Is that correct? I've not understood x-wings until now. I'm kind of new at this, and I love it!!

Also, how exactly did you get the code box around my grid? Do I just highlight it and hit the code button? I tried that and it didn't seem to work.

Thanks again for your help.

Donetta

[bennys]

You need to copy press code paste and then alt C

[Cec]

"..I'm kind of new at this, and I love it!...
Also, how exactly did you get the code box around my grid? Do I just highlight it and hit the code button? I tried that and it didn't seem to work.
Donetta

Hi Donetta,
A few tips to get you along further:

Click on here to learn the basic terms used when submitting/reading posts .

Puzzles should be submitted on a grid so they are easy to read and suitable for direct loading into members' preferred program solvers. Suggestions to prepare such a grid are described in previous posts such as clicking on this thread.

As for the use of the code to show the "pencil marks" ('clues' plus 'candidates') I'm still learning this myself but hopefully others will help you after new year's day. In the meantime you may wish to look at the following sites which describe many of the sudoku solving techniques:
http://www.angusj.com/sudoku/hints.php
http://www.simes.clara.co.uk/programs/sudokutechniques.htm

Cec

[skibum]

Thank you all. I solved the puzzle using the x-wings pointed out. I will practice looking for them myself now. And the links were very helpful. I'm sure I'll be referring to them often. Happy New Year, everyone!!