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Vanhegan Extreme June 1, 2012

 
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arkietech



Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
PostPosted: Fri Jun 01, 2012 6:05 am    Post subject: Vanhegan Extreme June 1, 2012 Reply with quote
Code:

 *-----------*
 |..6|2.3|1..|
 |...|.7.|...|
 |.2.|8.4|.3.|
 |---+---+---|
 |1.4|925|7.3|
 |.57|...|46.|
 |8.9|647|2.5|
 |---+---+---|
 |.1.|5.9|.4.|
 |...|.6.|...|
 |..5|7.8|3..|
 *-----------*
 

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Clement



Joined: 24 Apr 2006
Posts: 1113
Location: Dar es Salaam Tanzania
PostPosted: Fri Jun 01, 2012 11:45 am    Post subject: Vanhagen Extreme June 1, 2012 Reply with quote
After the Basics
Code:

+--------------+--------+-------------+
| 4579 4789 6  | 2 59 3 | 1   579 478 |
| 3459 489  38 | 1 7  6 | 589 259 248 |
| 5-79  2    1  | 8 59 4 | 569 3   *67  |
+--------------+--------+-------------+
| 1    6    4  | 9 2  5 | 7   8   3   |
| 2    5    7  | 3 8  1 | 4   6   9   |
| 8    3    9  | 6 4  7 | 2   1   5   |
+--------------+--------+-------------+
| *67   1    2  | 5 3  9 | 68  4   678 |
| 379  3789 38 | 4 6  2 | 59  579 1   |
| 469  49   5  | 7 1  8 | 3   29  26  |
+--------------+--------+-------------+
W-Wing 67 SL on 6 in row 9; r3c1<>7 solves it.
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Fri Jun 01, 2012 1:46 pm    Post subject: Reply with quote
Clearly the w-wing is the simplest solution but walking around the entire grid is more fun......

axy-wing(26-8)r9c9+r2c9|r7c7=(*4-2)r2c9=r2c8-(2=9)r9c8-(59=7)r8c78-r8c12=r7c1-r3c1=r3c9-(4*7=8)r1c9; r2c7,r7c9<>8

Ted
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Fri Jun 01, 2012 4:33 pm    Post subject: Reply with quote
Quote:
Clearly the w-wing is the simplest solution


I'll take issue with that. How about the XYZ-Wing on 678 pivoted in r7c9? Laughing
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Fri Jun 01, 2012 8:09 pm    Post subject: Reply with quote
Marty R. wrote:
Quote:
Clearly the w-wing is the simplest solution


I'll take issue with that. How about the XYZ-Wing on 678 pivoted in r7c9? Laughing


Recently several posts have solved puzzles with a xyz-wing. I may have to start explicitly looking for them again since my tact of treating them as a variation of almost xy-wings does not seem to be working.

ted
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