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		arkietech
 
 
  Joined: 31 Jul 2008 Posts: 1834 Location: Northwest Arkansas USA
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				 Posted: Mon Sep 10, 2012 5:24 am    Post subject: Daily Telegraph Diabolical Fri, 7-Sep-2012 | 
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				 	  | Code: | 	 		  
 
 *-----------*
 
 |3..|..9|8..|
 
 |8..|1..|.53|
 
 |...|...|61.|
 
 |---+---+---|
 
 |5..|.4.|...|
 
 |46.|...|.87|
 
 |...|...|..2|
 
 |---+---+---|
 
 |.41|...|...|
 
 |27.|..4|..5|
 
 |..5|7.3|..1|
 
 *-----------*
 
  | 	  
 
 Play/Print this puzzle online | 
			 
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		Clement
 
 
  Joined: 24 Apr 2006 Posts: 1113 Location: Dar es Salaam Tanzania
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				 Posted: Mon Sep 10, 2012 7:04 am    Post subject: Daily Telegraph Diabolical Fri, 7-Sep-2012 | 
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				 	  | Code: | 	 		  
 
+--------+--------------+----------+
 
| 3  1 6 | 25  257  9   | 8   27 4 |
 
| 8  9 4 | 1   267  267 | 27  5  3 |
 
| 7  5 2 | 4   3    8   | 6   1  9 |
 
+--------+--------------+----------+
 
| 5  2 8 | 39  4    17  | 13  39 6 |
 
| 4  6 9 | 235 25   125 | 135 8  7 |
 
| 1  3 7 | 569 8    56  | 45  49 2 |
 
+--------+--------------+----------+
 
| 69 4 1 | 256 2569 256 | 37  37 8 |
 
| 2  7 3 | 8   1    4   | 9   6  5 |
 
| 69 8 5 | 7   69   3   | 24  24 1 |
 
+--------+--------------+----------+
 
 | 	  Type 1 UR 69 in Grid r79c15; r7c5<>69 solves it. | 
			 
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		tlanglet
 
 
  Joined: 17 Oct 2007 Posts: 2468 Location: Northern California Foothills
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				 Posted: Mon Sep 10, 2012 1:27 pm    Post subject:  | 
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				Another AUR solution is 
 
 
AUR(25)r15c45[7r1c5=3r5c4]-r5c7=r7c7-(3=7)r7c8; -7r1c8
 
 
Ted | 
			 
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		Marty R.
 
 
  Joined: 12 Feb 2006 Posts: 5770 Location: Rochester, NY, USA
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				 Posted: Mon Sep 10, 2012 3:48 pm    Post subject:  | 
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				 	  | Code: | 	 		  +--------+--------------+----------+
 
| 3  1 6 | 25  257  9   | 8   27 4 |
 
| 8  9 4 | 1   267  267 | 27  5  3 |
 
| 7  5 2 | 4   3    8   | 6   1  9 |
 
+--------+--------------+----------+
 
| 5  2 8 | 39  4    17  | 13  39 6 |
 
| 4  6 9 | 235 25   125 | 135 8  7 |
 
| 1  3 7 | 569 8    56  | 45  49 2 |
 
+--------+--------------+----------+
 
| 69 4 1 | 256 2569 256 | 37  37 8 |
 
| 2  7 3 | 8   1    4   | 9   6  5 |
 
| 69 8 5 | 7   69   3   | 24  24 1 |
 
+--------+--------------+----------+  | 	  
 
 
I also used the almost Type 6 UR on 25 in boxes 25. Either r1c5=7 or r5c4=3. The 7 proves a 3 or the 3 proves a 7 and either set of pincers solves it.
 
 
(This grid copied from above can eliminate a few candidates based on the 39 pair in r4. | 
			 
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