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		CORUJA
 
 
  Joined: 16 Jun 2007 Posts: 15 Location: BRUMADINHO - MG; BRAZIL
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				 Posted: Mon Jun 18, 2007 7:24 pm    Post subject: 29 May, VH | 
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				Earl,
 
I'm stuck exactly at the point yo were on  May 30: can't get rid of the 2 in R1.
 
Please help me! Thanks. | 
			 
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		dulaby
 
 
  Joined: 02 May 2007 Posts: 13
 
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				 Posted: Tue Jun 19, 2007 7:47 pm    Post subject:  | 
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				Coruja,tudo bem? . 
 
          Repare que existe uma xy-wing em r1c3(7 ,r4c3(37) e r4c5(3  e o     <8> sai de r1c5 ,portanto r1c4 tem que ser <2>.Isso resolve a sua duvida? | 
			 
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		Mogulmeister
 
 
  Joined: 03 May 2007 Posts: 1151
 
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				 Posted: Wed Jun 20, 2007 11:12 am    Post subject:  | 
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				You do need those sunglasses in sunny Brazil !   
 
 
Dulaby, the 8 followed by a ) produces that smiley. You're better off using square [] brackets. | 
			 
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		Earl
 
 
  Joined: 30 May 2007 Posts: 677 Location: Victoria, KS
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				 Posted: Wed Jun 20, 2007 5:31 pm    Post subject: May 29 | 
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				Coruga,
 
 
If you show me the grid, I might be able to help.
 
 
Without the particular situation, my memory is untrustworthy.
 
 
Earl | 
			 
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		CORUJA
 
 
  Joined: 16 Jun 2007 Posts: 15 Location: BRUMADINHO - MG; BRAZIL
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				 Posted: Wed Jun 20, 2007 6:37 pm    Post subject: MAY 29 VH | 
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				Earl,
 
  I'm still at this point, and can't see how to get rid of the 2 in R1C3 , in R1C5 and in R1C8.
 
Thanks again.
 
 
 	  | Code: | 	 		  
 
+------------+--------------+------------+
 
| 4  6   278 | 257  258 3   | 9   125 15 |
 
| 3  9   278 | 1    258 78  | 678 256 4  |
 
| 5  278 1   | 6    4   9   | 378 23  37 |
 
+------------+--------------+------------+
 
| 9  4   37  | 357  358 678 | 2   136 16 |
 
| 27 1   6   | 2379 239 4   | 5   8   37 |
 
| 8  237 5   | 237  1   67  | 367 4   9  |
 
+------------+--------------+------------+
 
| 6  38  389 | 4    7   5   | 1   39  2  |
 
| 1  5   39  | 39   6   2   | 4   7   8  |
 
| 27 27  4   | 8    39  1   | 36  356 56 |
 
+------------+--------------+------------+
 
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		Marty R.
 
 
  Joined: 12 Feb 2006 Posts: 5770 Location: Rochester, NY, USA
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				 Posted: Wed Jun 20, 2007 9:31 pm    Post subject: Re: MAY 29 VH | 
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				 	  | CORUJA wrote: | 	 		  Earl,
 
  I'm still at this point, and can't see how to get rid of the 2 in R1C3 , in R1C5 and in R1C8.
 
Thanks again.
 
 
 	  | Code: | 	 		  
 
+------------+--------------+------------+
 
| 4  6   278 | 257  258 3   | 9   125 15 |
 
| 3  9   278 | 1    258 78  | 678 256 4  |
 
| 5  278 1   | 6    4   9   | 378 23  37 |
 
+------------+--------------+------------+
 
| 9  4   37  | 357  358 678 | 2   136 16 |
 
| 27 1   6   | 2379 239 4   | 5   8   37 |
 
| 8  237 5   | 237  1   67  | 367 4   9  |
 
+------------+--------------+------------+
 
| 6  38  389 | 4    7   5   | 1   39  2  |
 
| 1  5   39  | 39   6   2   | 4   7   8  |
 
| 27 27  4   | 8    39  1   | 36  356 56 |
 
+------------+--------------+------------+
 
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I don't know if this specifically answers the question, but there is a basic move that needs to be made. In column 3 the only place for a 2 is in box 1. Thus the 2 must be removed from r3c2. This leaves a 378 triple (or a sole 2) in row 3 which sets off a chain of additional moves. | 
			 
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		Earl
 
 
  Joined: 30 May 2007 Posts: 677 Location: Victoria, KS
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				 Posted: Wed Jun 20, 2007 9:36 pm    Post subject: May 29 | 
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				Coruja,
 
 
Now I recall.
 
First the 9 in r9c5 is unique which leads to a solution of all 9's.
 
 
Then the 2's in r1c3, r2c3 are unique to c3, eliminating the 2 from r3c2.
 
That makes the 2 in r3c8 unique and opens up the puzzle.
 
 
You can eliminate the 3 in r4c5 by the xy wing r4c3, r5c1 r5c5.
 
 
Rest is straight forward.
 
 
Earl | 
			 
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		CORUJA
 
 
  Joined: 16 Jun 2007 Posts: 15 Location: BRUMADINHO - MG; BRAZIL
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				 Posted: Thu Jun 21, 2007 3:44 pm    Post subject: 29 May, VH | 
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				Earl and Marty,
 
 
       thank you sooooo much!! I really overlooked the basic move that eliminates the 2 from R3C2.
 
               Coruja. 
 
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		CORUJA
 
 
  Joined: 16 Jun 2007 Posts: 15 Location: BRUMADINHO - MG; BRAZIL
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				 Posted: Thu Jun 21, 2007 3:48 pm    Post subject: 29 MAY, VH | 
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				Olá dulaby,
 
 
 
      muito obrigada pela sua sugestão, que utilizei após eliminar o 2 da R3C2 com a ajuda do Earl e do Marty.
 
      Coruja.
 
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