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Dec 10 VH

 
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Earl



Joined: 30 May 2007
Posts: 677
Location: Victoria, KS

PostPosted: Wed Dec 10, 2008 3:00 am    Post subject: Dec 10 VH Reply with quote

Two steps: x-wing (1), xy-wing (269).
Any one-step solutions?

Earl
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Marty R.



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

PostPosted: Wed Dec 10, 2008 4:49 am    Post subject: Reply with quote

Quote:
Any one-step solutions?

Not from me. I obviously missed something, or a lot of things, since it took me six steps. So I erased it, did it again and it took me seven!! Embarassed
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cgordon



Joined: 04 May 2007
Posts: 769
Location: ontario, canada

PostPosted: Wed Dec 10, 2008 2:21 pm    Post subject: Reply with quote

Actually, I used the x-wing(s) on <1> and an ER on <4> before finding the <269> xy-wing. So I started again and just used the xy-wing - and found that was all that was needed. Seven steps indeed!!
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills

PostPosted: Wed Dec 10, 2008 3:32 pm    Post subject: Reply with quote

cgordon wrote:
So I started again and just used the xy-wing - and found that was all that was needed.


After basics, I had this code:
Code:

*--------------------------------------------------*
 | 1    5    49   | 6    79   3    | 478  2    478  |
 | 8    49   6    | 5    79   2    | 347  1    347  |
 | 7    3    2    | 4    8    1    | 5    6    9    |
 |----------------+----------------+----------------|
 | 2    8    179  | 19   4    5    | 36   79   36   |
 | 4    69   5    | 3    26   7    | 1    89   28   |
 | 3    169  179  | 129  126  8    | 27   4    5    |
 |----------------+----------------+----------------|
 | 9    2    18   | 178  3    4    | 678  5    678  |
 | 5    14   3    | 78   12   6    | 9    78   24   |
 | 6    7    48   | 28   5    9    | 24   3    1    |
 *--------------------------------------------------*


My solution was exactly like that posted by Earl. The x-wing <1> to eliminate <1> in r6c34 which opens up the xy-wing <269> with pivot <27> at r6c7 and pincers <79> at r4c8 and <29> at r6c4 to solve the puzzle.

How did you eliminate the <1> in r6c4 or did you use a different xy-wing <269>?

Ted
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cgordon



Joined: 04 May 2007
Posts: 769
Location: ontario, canada

PostPosted: Wed Dec 10, 2008 4:17 pm    Post subject: Reply with quote

Quote:
How did you eliminate the <1> in r6c4

Well - there wasn't a <1> there after I rubbed out the first attempt and did it again. The rubber (or eraser to you guys) must have slipped.
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Wendy W



Joined: 04 Feb 2008
Posts: 144

PostPosted: Thu Dec 11, 2008 12:26 am    Post subject: Reply with quote

I solved it the same way everyone else did but didn't count the # of steps!
I enjoyed today's puzzle more than other VHs recently because it didn't just fall apart like some do -- it took some methodical work. But not too much!
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crunched



Joined: 05 Feb 2008
Posts: 168

PostPosted: Thu Dec 11, 2008 6:39 am    Post subject: Reply with quote

Quote:
...which opens up the xy-wing <269> with pivot <27> at r6c7.

I am puzzled with others saying that the xy wing was <269>. Can a <269> xy wing pivot on something with a 7 in it?

I am thinking that the xy-wing should be <279>.
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daj95376



Joined: 23 Aug 2008
Posts: 3854

PostPosted: Thu Dec 11, 2008 10:31 am    Post subject: Reply with quote

Ted wrote:
My solution was exactly like that posted by Earl. The x-wing <1> to eliminate <1> in r6c34 which opens up the xy-wing <269> with pivot <27> at r6c7 and pincers <79> at r4c8 and <29> at r6c4 to solve the puzzle.

How did you eliminate the <1> in r6c4 or did you use a different xy-wing <269>?

Ted: I'll have some of what you're drinking!!!

Code:
 after X-Wing in <1>: Earl's <269> XY-Wing
 *--------------------------------------------------*
 | 1    5    49   | 6    79   3    | 478  2    478  |
 | 8    49   6    | 5    79   2    | 347  1    347  |
 | 7    3    2    | 4    8    1    | 5    6    9    |
 |----------------+----------------+----------------|
 | 2    8    179  | 19   4    5    | 36   79   36   |
 | 4   *69   5    | 3   *26   7    | 1    89   28   |
 | 3    16-9 7-9  |*29   126  8    | 27   4    5    |
 |----------------+----------------+----------------|
 | 9    2    18   | 178  3    4    | 678  5    678  |
 | 5    14   3    | 78   12   6    | 9    78   24   |
 | 6    7    48   | 28   5    9    | 24   3    1    |
 *--------------------------------------------------*

Code:
 after X-Wing in <1>: Ted's <279> XY-Wing
 *--------------------------------------------------*
 | 1    5    49   | 6    79   3    | 478  2    478  |
 | 8    49   6    | 5    79   2    | 347  1    347  |
 | 7    3    2    | 4    8    1    | 5    6    9    |
 |----------------+----------------+----------------|
 | 2    8    179  | 1-9  4    5    | 36  *79   36   |
 | 4    69   5    | 3    26   7    | 1    89   28   |
 | 3    169  79   |*29   126  8    |*27   4    5    |
 |----------------+----------------+----------------|
 | 9    2    18   | 178  3    4    | 678  5    678  |
 | 5    14   3    | 78   12   6    | 9    78   24   |
 | 6    7    48   | 28   5    9    | 24   3    1    |
 *--------------------------------------------------*
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sudocraz



Joined: 28 Apr 2008
Posts: 53

PostPosted: Fri Dec 12, 2008 2:08 am    Post subject: Reply with quote

I thought that it was a fun puzzle. We solved it with one x-wing and the 269 xy-wing. For my husband and I, these puzzles have been fun lately. Good practice too with the xy-wings.

There have been more VH puzzles than usual in the last week or so. Smile
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crunched



Joined: 05 Feb 2008
Posts: 168

PostPosted: Fri Dec 12, 2008 4:20 am    Post subject: Reply with quote

Aha! There is a 269 xy wing and a 279 xy wing. I never saw the 269 wing. Either solves the puzzle.
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