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December 17 VH

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Marty R.

Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA

Posted: Mon Dec 17, 2012 2:41 am Post subject: December 17 VH

Code:

+---------------+-----------------+--------------+
| 1 5 469 | 3 49 7 | 26 29 8 |
| 49 3 4689 | 248 24589 24589 | 1 7 4569 |
| 2 7 489 | 1 6 4589 | 59 359 3459 |
+---------------+-----------------+--------------+
| 4569 249 7 | 248 248 3 | 26 1 569 |
| 35 24 1 | 9 24 6 | 7 8 35 |
| 369 8 23 | 5 7 1 | 4 239 369 |
+---------------+-----------------+--------------+
| 7 1 49 | 6 3 4589 | 589 59 2 |
| 39 6 5 | 28 1 289 | 389 4 7 |
| 8 249 23 | 7 459 459 | 359 6 1 |
+---------------+-----------------+--------------+

Play this puzzle online at the Daily Sudoku site

Limiting myself to just standard VH moves, I couldn't find a one-stepper.

Quote:

X-Wing (4), c14
XYZ-Wing (689), pivot r2c3

Last edited by Marty R. on Tue Dec 18, 2012 5:06 pm; edited 1 time in total

hughwill

Joined: 05 Apr 2010
Posts: 424
Location: Birmingham UK

Posted: Mon Dec 17, 2012 10:28 am Post subject: December 17 VH

After X wing and further basics:

Code:

+--------------+---------------+------------+
| 1 5 469 | 3 49 7 | 26 29 8 |
| 49 3 689 | 248 2589 2589 | 1 7 69 |
| 2 7 89 | 1 6 89 | 5 3 4 |
+--------------+---------------+------------+
| 4569 29 7 | 248 28 3 | 26 1 569 |
| 35 24 1 | 9 24 6 | 7 8 35 |
| 369 8 23 | 5 7 1 | 4 29 369 |
+--------------+---------------+------------+
| 7 1 49 | 6 3 489 | 89 5 2 |
| 39 6 5 | 28 1 289 | 389 4 7 |
| 8 249 23 | 7 459 459 | 39 6 1 |
+--------------+---------------+------------+

Play this puzzle online at the Daily Sudoku site

This one stumped me for traditional solutions. All I could see is
a W wing on 49s r1c3<>4 ...... Did I go wrong somewhere- have I missed something ?

Marty R.

Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA

Posted: Mon Dec 17, 2012 1:02 pm Post subject:

Quote:

have I missed something ?

Did you see my comments? Just highlight the text in the quote box. Smile

arkietech

Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA

Posted: Tue Dec 18, 2012 1:41 pm Post subject:

Code:

*--------------------------------------------------------------------*
| 1 5 469 | 3 49 7 | 26 29 8 |
| 49 3 4689 | 248 24589 24589 | 1 7 469 |
| 2 7 489 | 1 6 489 | 59 359 349 |
|----------------------+----------------------+----------------------|
| 4569 249 7 | 248 248 3 | 26 1 569 |
| 35 24 1 | 9 24 6 | 7 8 35 |
| 369 8 23 | 5 7 1 | 4 239 369 |
|----------------------+----------------------+----------------------|
| 7 1 49 | 6 3 4589 | 589 59 2 |
| 39 6 5 | 28 1 289 | 389 4 7 |
| 8 249 23 | 7 459 459 | 359 6 1 |
*--------------------------------------------------------------------*
xy-chain
(2=4)r5c5-(4=9)r1c5-(9=2)r1c8-(2=6)r1c7=(6=2)r4c7 => -2r4c45; stte

the_lock_man

Joined: 18 Dec 2012
Posts: 40
Location: Portsmarfff, UK

Posted: Tue Dec 18, 2012 2:11 pm Post subject: Re: December 17 VH

Marty R. wrote:

Code:

Play this puzzle online at the Daily Sudoku site

Limiting myself to just standard VH moves, I couldn't find a one-stepper.

Quote:

X-Wing (4), c14
XYZ-Wing (489), pivot r2c3

Confused - having done the first stage of the hidden text, there aren't the numbers available to do the 2nd stage. Should that be a 6, not a 4?

Ema Nymton

Joined: 17 Apr 2009
Posts: 89

Posted: Tue Dec 18, 2012 4:44 pm Post subject:

.

Sorry, I can't even get there from here.

Code:

+---------------+-----------------+-----------------+
| 1 5 469 | 3 49 7 | 269 29 8 |
| 469 3 4689 | 248 24589 24589 | 1 7 4569 |
| 2 7 489 | 1 6 4589 | 59 359 3459 |
+---------------+-----------------+-----------------+
| 4569 249 7 | 248 248 3 | 25689 1 569 |
| 345 24 1 | 9 248 6 | 7 2358*35 |
| 369 8 2369 | 5 7 1 | 4 239 369 |
+---------------+-----------------+-----------------+
| 7 1 49 | 6 3 4589 | 589 589 2 |
| 39 6 5 | 28 1 289 | 389 4 7 |
| 8 249 2349 | 7 459 459 | 359 6 1 |
+---------------+-----------------+-----------------+

Play this puzzle online at the Daily Sudoku site

* r4C8 = 8; how?

What steps clear the cell to = 8?

Ema Nymton
~ @ : o ?
.

Marty R.

Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA

Posted: Tue Dec 18, 2012 5:08 pm Post subject:

Quote:

Confused - having done the first stage of the hidden text, there aren't the numbers available to do the 2nd stage. Should that be a 6, not a 4?

Sorry, you're right, it s a 689 XYZ-Wing. My post has been edited to reflect that. Embarassed

Marty R.

Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA

Posted: Tue Dec 18, 2012 5:12 pm Post subject:

Quote:

* r4C8 = 8; how?

What steps clear the cell to = 8?

Ema,

I guess you mean r5c8. Take an extremely close look at c7.

Ema Nymton

Joined: 17 Apr 2009
Posts: 89

Posted: Wed Dec 19, 2012 9:30 am Post subject:

Marty R. wrote:

Quote:

* r4C8 = 8; how?

What steps clear the cell to = 8?

Ema,

I guess you mean r5c8. Take an extremely close look at c7.

Sorry, you are right. I meant r5c8.

No matter how close I look at c7; I still cannot sort out why the cell = 8.

Ema Nymton
~@:o?
.

hughwill

Joined: 05 Apr 2010
Posts: 424
Location: Birmingham UK

Posted: Wed Dec 19, 2012 10:49 am Post subject:

Quote:

Take an extremely close look at c7.

No matter how close I look at c7; I still cannot sort out why the cell = 8.

Look for a hidden pair in c7

Ema Nymton

Joined: 17 Apr 2009
Posts: 89

Posted: Wed Dec 19, 2012 12:25 pm Post subject:

. Thank you all. This is one deviously delicious puzzle. Ema Nymton ~@:o? .

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