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Aug 24 VH

 
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Clement



Joined: 24 Apr 2006
Posts: 1111
Location: Dar es Salaam Tanzania
PostPosted: Sun Aug 23, 2015 10:08 pm    Post subject: Aug 24 VH Reply with quote
Code:

+---------+-----------+-----------+
| 7  3 9  | 8   5  6  | 4   1  2  |
| 5  6 1  | 9   2  4  | 7   3  8  |
| 2  8 4  | 17  17 3  | 9   6  5  |
+---------+-----------+-----------+
| 9  2 5  | 36  4  8  | 36  7  1  |
| 4  7 36 | 5   13 12 | 236 8  9  |
| 8  1 36 | 236 9  7  | 5   24 46 |
+---------+-----------+-----------+
| 16 9 7  | 4   8  12 | 26  5  3  |
| 36 5 8  | 237 37 9  | 1   24 46 |
| 13 4 2  | 13  6  5  | 8   9  7  |
+---------+-----------+-----------+
XY-Wing 13-7 pivoted in r9c4; r3c5<>7; stte
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bat999



Joined: 09 Jul 2015
Posts: 55
Location: UK
PostPosted: Mon Aug 24, 2015 2:02 am    Post subject: Reply with quote
Code:
.------------.----------------.---------------.
|  7   3  9  |  8     5    6  | 4     1    2  |
|  5   6  1  |  9     2    4  | 7     3    8  |
|  2   8  4  |  17    17   3  | 9     6    5  |
:------------+----------------+---------------:
|  9   2  5  |  36    4    8  | 36    7    1  |
|  4   7  36 |  5    d13  d12 | 236   8    9  |
|  8   1  36 | c236   9    7  | 5     24   46 |
:------------+----------------+---------------:
|  16  9  7  |  4     8    12 | 26    5    3  |
| a36  5  8  | b237   7-3  9  | 1    a24  a46 |
|  13  4  2  |  13    6    5  | 8     9    7  |
'------------'----------------'---------------'
(3=2)r8c189 - r8c4 = r6c4 - (2=3)r5c56 => -3 r8c5; stte
Cool
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Mon Aug 24, 2015 5:26 am    Post subject: Re: Aug 24 VH Reply with quote
Clement wrote:
Code:

+---------+-----------+-----------+
| 7  3 9  | 8   5  6  | 4   1  2  |
| 5  6 1  | 9   2  4  | 7   3  8  |
| 2  8 4  | 17  17 3  | 9   6  5  |
+---------+-----------+-----------+
| 9  2 5  | 36  4  8  | 36  7  1  |
| 4  7 36 | 5   13 12 | 236 8  9  |
| 8  1 36 | 236 9  7  | 5   24 46 |
+---------+-----------+-----------+
| 16 9 7  | 4   8  12 | 26  5  3  |
| 36 5 8  | 237 37 9  | 1   24 46 |
| 13 4 2  | 13  6  5  | 8   9  7  |
+---------+-----------+-----------+
XY-Wing 13-7 pivoted in r9c4; r3c5<>7; stte


Hardly one of Sam's best efforts. In addition to the Wing:

DP(36)r456c347 2r5c7=2r6c4=> -2r5c6,r6c8
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dongrave



Joined: 06 Mar 2014
Posts: 568
PostPosted: Mon Aug 24, 2015 11:13 pm    Post subject: Reply with quote
There's also a 37-1 XY-Wing with pivot at r8c5 so r3c4<>1.
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