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Nov 10 VH

 
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yeoks



Joined: 16 May 2010
Posts: 19

PostPosted: Sun Nov 10, 2013 4:42 am    Post subject: Nov 10 VH Reply with quote

After basics
Code:

+-------------+-----------+-----------+
| 467 16  146 | 69 5  679 | 3   2 8   |
| 256 26  9   | 1  3  8   | 56  7 4   |
| 567 3   8   | 4  2  67  | 56  9 1   |
+-------------+-----------+-----------+
| 3   19  5   | 8  7  14  | 249 6 29  |
| 8   7   16  | 2  69 14  | 49  5 3   |
| 69  4   2   | 5  69 3   | 1   8 7   |
+-------------+-----------+-----------+
| 469 5   46  | 7  1  2   | 8   3 69  |
| 1   269 3   | 69 8  5   | 7   4 269 |
| 269 8   7   | 3  4  69  | 29  1 5   |
+-------------+-----------+-----------+

Play this puzzle online at the Daily Sudoku site

XYZ Wing 469 pivoted in r7c1 => r9c1<>6 solves it.
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hughwill



Joined: 05 Apr 2010
Posts: 222
Location: Birmingham UK

PostPosted: Sun Nov 10, 2013 9:59 am    Post subject: Nov 10 VH Reply with quote

169 XY-wing pivot r4c2 works as well.
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Marty R.



Joined: 12 Feb 2006
Posts: 5176
Location: Rochester, NY, USA

PostPosted: Sun Nov 10, 2013 4:22 pm    Post subject: Re: Nov 10 VH Reply with quote

hughwill wrote:
169 XY-wing pivot r4c2 works as well.


Maybe I can make a fool of myself on consecutive puzzles, but I don't see how that wing solves it. As I see it, it removes 6 from r123c1. Then what?
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keith



Joined: 19 Sep 2005
Posts: 3182
Location: near Detroit, Michigan, USA

PostPosted: Sun Nov 10, 2013 7:55 pm    Post subject: Re: Nov 10 VH Reply with quote

Marty R. wrote:
hughwill wrote:
169 XY-wing pivot r4c2 works as well.


Maybe I can make a fool of myself on consecutive puzzles, but I don't see how that wing solves it. As I see it, it removes 6 from r123c1. Then what?

Then, you still need the XYZ-wing.

Keith
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hughwill



Joined: 05 Apr 2010
Posts: 222
Location: Birmingham UK

PostPosted: Mon Nov 11, 2013 9:01 am    Post subject: Nov 10 VH Reply with quote

Keith wrote:

Quote:

Marty R. wrote:

hughwill wrote:
169 XY-wing pivot r4c2 works as well.


Maybe I can make a fool of myself on consecutive puzzles, but I don't
see how that wing solves it. As I see it, it removes 6 from r123c1. Then
what?

Then, you still need the XYZ-wing.


Embarassed
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Rocky Mozell



Joined: 28 Jul 2010
Posts: 22
Location: Boston, MA

PostPosted: Fri Nov 15, 2013 3:28 pm    Post subject: Reply with quote

I just got to this one and found an xy wing with pivot at r4c6 that solves it.
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