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Sep 8 VH

 
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Clement



Joined: 24 Apr 2006
Posts: 1113
Location: Dar es Salaam Tanzania
PostPosted: Sat Sep 07, 2013 10:32 pm    Post subject: Sep 8 VH Reply with quote
Code:

+-------------+---------+-------------+
| 1   578 578 | 4  6  2 | 9   78   3  |
| 9   2   #68  | 7  5  3 | *16  8-1   4  |
| 67  4   3   | 1  9  8 | 5   27   26 |
+-------------+---------+-------------+
| 2   67  67  | 35 1  4 | 8   35   9  |
| 358 9   15  | 35 28 7 | 4   6    12 |
| 358 135 4   | 9  28 6 | 13  1235 7  |
+-------------+---------+-------------+
| 57  57  9   | 6  3  1 | 2   4    8  |
| 4   138 *18  | 2  7  5 | 36-1 9    16 |
| 36  136 2   | 8  4  9 | 7   13   5  |
+-------------+---------+-------------+
XY-Wing 18-68-16 pivoted in r2c3; r8c7<>1 opens another
XY-Wing 16-36-13 pivoted in r8c7; r2c8<>1; stte.
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arkietech



Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
PostPosted: Sun Sep 08, 2013 3:06 am    Post subject: Reply with quote
Code:
 *-----------------------------------------------------------*
 | 1     578   578   | 4     6     2     | 9     78    3     |
 | 9     2     68    | 7     5     3     | 16    18    4     |
 | 67    4     3     | 1     9     8     | 5     27    26    |
 |-------------------+-------------------+-------------------|
 | 2     67    67    | 35    1     4     | 8     5-3   9     |
 | 358   9     15    | 35    28    7     | 4     6    c12    |
 | 358   135   4     | 9     28    6     |d13    125-3 7     |
 |-------------------+-------------------+-------------------|
 | 57    57    9     | 6     3     1     | 2     4     8     |
 | 4     138   18    | 2     7     5     | 16-3  9    b16    |
 | 36    136   2     | 8     4     9     | 7    a13    5     |
 *-----------------------------------------------------------*
w-wing
(3=1)r9c8-r8c9=r5c9-(1=3)r6c7 => -3r46c8,r8c7; ste
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Sun Sep 08, 2013 5:09 am    Post subject: Re: Sep 8 VH Reply with quote
Clement wrote:
Code:

+-------------+---------+-------------+
| 1   578 578 | 4  6  2 | 9   78   3  |
| 9   2   #68  | 7  5  3 | *16  8-1   4  |
| 67  4   3   | 1  9  8 | 5   27   26 |
+-------------+---------+-------------+
| 2   67  67  | 35 1  4 | 8   35   9  |
| 358 9   15  | 35 28 7 | 4   6    12 |
| 358 135 4   | 9  28 6 | 13  1235 7  |
+-------------+---------+-------------+
| 57  57  9   | 6  3  1 | 2   4    8  |
| 4   138 *18  | 2  7  5 | 36-1 9    16 |
| 36  136 2   | 8  4  9 | 7   13   5  |
+-------------+---------+-------------+
XY-Wing 18-68-16 pivoted in r2c3; r8c7<>1 opens another
XY-Wing 16-36-13 pivoted in r8c7; r2c8<>1; stte.


XY-Wing (26-1), pivot r3c9=>r6c7<>1 was enough for me unless I screwed up.
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arkietech



Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
PostPosted: Sun Sep 08, 2013 12:02 pm    Post subject: Re: Sep 8 VH Reply with quote
Marty R. wrote:
XY-Wing (26-1), pivot r3c9=>r6c7<>1 was enough for me unless I screwed up.


Marty,

You didn't (but I did Embarassed )

Last edited by arkietech on Sun Sep 08, 2013 2:25 pm; edited 1 time in total
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hughwill



Joined: 05 Apr 2010
Posts: 424
Location: Birmingham UK
PostPosted: Sun Sep 08, 2013 12:40 pm    Post subject: Re: Sep 8 VH Reply with quote
Quote:

Marty R. wrote:
XY-Wing (26-1), pivot r3c9=>r6c7<>1 was enough for me unless I screwed up.


Arkitech replied:

Marty,

What is your next step?


After Marty's single 126 XY all fell for me too...
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Clement



Joined: 24 Apr 2006
Posts: 1113
Location: Dar es Salaam Tanzania
PostPosted: Sun Sep 08, 2013 2:30 pm    Post subject: Sep 8 VH Reply with quote
Marty
Yes, the XY-Wing (26-1) is a one stepper. I couldn't see it Surprised
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