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Jan 24 VH

 
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Clement



Joined: 24 Apr 2006
Posts: 1111
Location: Dar es Salaam Tanzania
PostPosted: Sun Jan 23, 2011 10:11 pm    Post subject: Jan 24 VH Reply with quote
XY-Wing 67 27 26 pivoted in r3c2 eliminating 6 in r1c8 solves it.
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Mon Jan 24, 2011 4:41 am    Post subject: Reply with quote
Couple of alternatives.

XY-Wing (278), pivoted in r3c2
XYZ-Wing (678), pivoted in r3c3
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cgordon



Joined: 04 May 2007
Posts: 769
Location: ontario, canada
PostPosted: Mon Jan 24, 2011 2:06 pm    Post subject: Reply with quote
There was also an x wing on 9.

The hard bit for me was spotting the sextuplet in C3 (I guess you could also say it was a hidden pair 35).
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Ema Nymton



Joined: 17 Apr 2009
Posts: 89
PostPosted: Tue Jan 25, 2011 2:58 am    Post subject: Reply with quote
.
1/24/2011

Why a '4'?

Code:

+-------------+-----------------+----------+
| 5   3  B67  | 126  127   4    | 9 C26 8  |
| 248 9  468? | 268  5     26   | 7  1  3  |
| 1  A27 678  | 3    2789  2679 | 5 26* 4  |
+-------------+-----------------+----------+
| 249 1  3459 | 2469 2349  269  | 8  7  25 |
| 6   27 79   | 5    279   8    | 4  3  1  |
| 24  8  3457 | 124  12347 27   | 6  9  25 |
+-------------+-----------------+----------+
| 7   6  2    | 48   48    1    | 3  5  9  |
| 89  5  189  | 289  6     3    | 12 4  7  |
| 3   4  19   | 7    29    5    | 12 8  6  |
+-------------+-----------------+----------+


The critical point for me was the r2c3= '4'. The ABC alignment not withstanding, the hidden '3/5' in column 3 was key.

Ema Nymton
~@:o?
.
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