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		| arkietech 
 
 
 Joined: 31 Jul 2008
 Posts: 1834
 Location: Northwest Arkansas USA
 
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				|  Posted: Tue May 08, 2012 5:45 am    Post subject: Vanhegan Fiendish 5/8/12 |   |  
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				|  	  | Code: |  	  | *-----------*
 |6..|...|.89|
 |...|17.|4..|
 |.5.|8..|7..|
 |---+---+---|
 |..6|2..|.5.|
 |.94|7.1|82.|
 |.3.|..5|6..|
 |---+---+---|
 |..1|..7|.4.|
 |..5|.14|...|
 |84.|...|..7|
 *-----------*
 
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		| tlanglet 
 
 
 Joined: 17 Oct 2007
 Posts: 2468
 Location: Northern California Foothills
 
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				|  Posted: Tue May 08, 2012 12:45 pm    Post subject: |   |  
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				| Code after basics: 
  	  | Code: |  	  | *-----------------------------------------------------------* | 6     1     7     | 45    45    23    | 23    8     9     |
 | 39    8     239   | 1     7    *23/69 | 4     3-6   5     |
 | 4     5     239   | 8    *29    239-6 | 7     1    *26    |
 |-------------------+-------------------+-------------------|
 | 1     7     6     | 2     3     8     | 9     5     4     |
 | 5     9     4     | 7     6     1     | 8     2     3     |
 | 2     3     8     | 49    49    5     | 6     7     1     |
 |-------------------+-------------------+-------------------|
 | 39    26    1     | 39    8     7     | 5     4     26    |
 | 7     26    5     | 369   1     4     | 23    369   8     |
 | 8     4     39    | 3569  259   29    | 1     369   7     |
 *-----------------------------------------------------------*
 
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 A number of potential DP patterns but I could not find any that were helpful. I did find this cannibalistic axy-wing step..........
 
 axy-wing(29-3)r3c5+r3c9/r2c6=ls(23)r21c6-(2=9)r9c6-(9=3)r9c3-r7c1=r2c1-(3=2)r2c6-r1c6=r1c7-(2=6)r3c9; r2c8,r3c6<>6
 
 Another interesting pattern is an almost xy-chain:
 [(9=3)r9c7-(3=9)r7c1=(9=3)r2c1-(3=6)r2c8-(6=9)r9c8]=(3)r9c8-(3=9)r9c3; r9c456<>9
 
 [Edited one time to add second solution]
 
 Ted
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		| arkietech 
 
 
 Joined: 31 Jul 2008
 Posts: 1834
 Location: Northwest Arkansas USA
 
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				|  Posted: Tue May 08, 2012 1:23 pm    Post subject: |   |  
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				| I found a couple of wings different only in the number of digits involved. 
 m-wing (xy) (36)
 (3=6)r2c8-r2c6=(6-3)r3c6=(3)r3c3 => r2c13<>3; stte
 
 or
 
 h3-wing (xyz) (326)
 (3=2)r1c6-r1c7=(2-6)r3c9=(6)r3c6 => r3c6<>3; stte
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		| aran 
 
 
 Joined: 19 Apr 2010
 Posts: 70
 
 
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				|  Posted: Tue May 08, 2012 3:27 pm    Post subject: |   |  
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				| dailysudoku 8.5.12 
  	  | Code: |  	  | *-----------------------------------------------------------*
 | 6     1     7     | 45    45    23    | 23    8     9     |
 | 39    8     239   | 1     7     2369  | 4     36    5     |
 | 4     5     239   | 8     29    2369  | 7     1     26    |
 |-------------------+-------------------+-------------------|
 | 1     7     6     | 2     3     8     | 9     5     4     |
 | 5     9     4     | 7     6     1     | 8     2     3     |
 | 2     3     8     | 49    49    5     | 6     7     1     |
 |-------------------+-------------------+-------------------|
 | 39    26    1     | 39    8     7     | 5     4     26    |
 | 7     26    5     | 369   1     4     | 23    369   8     |
 | 8     4     39    | 3569  259   29    | 1     369   7     |
 *-----------------------------------------------------------*
 
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 9r9c36=XW9r23c36-(9=2)r3c5-(2=6)r3c9-(6=3)r2c8-(3=9)r2c1-XW9r23c36: =>r9c36=9
 sstste
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		| Marty R. 
 
 
 Joined: 12 Feb 2006
 Posts: 5770
 Location: Rochester, NY, USA
 
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				|  Posted: Tue May 08, 2012 4:45 pm    Post subject: |   |  
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				| I used two XY-Wings. The first on 293 pivoted in r9c6 and the second on 692 pivoted in r9c8. Each required a pincer transport to make its elimination. |  | 
	
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		| Clement 
 
 
 Joined: 24 Apr 2006
 Posts: 1113
 Location: Dar es Salaam Tanzania
 
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				|  Posted: Tue May 08, 2012 7:01 pm    Post subject: Vanhagen Fiendish 5/8/12 |   |  
				| 
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				| I also used two xy-wings; the one mentioned by Marty in r9c6 and onother one 69 36 39 pivoted in r2c8 with pincer transport 9 from r2c1 to r7c4; r9c456<>9. |  | 
	
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