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Earl
Joined: 30 May 2007
Posts: 677
Location: Victoria, KS
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 Posted: Sat Oct 18, 2008 3:02 am Post subject: Oct 18 VH |
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An xyz-wing centered on R1C6 will solve it.
Earl |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Sat Oct 18, 2008 3:25 am Post subject: |
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| Just basics did it for me. |
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keith
Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA
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| Posted: Sat Oct 18, 2008 3:59 am Post subject: |
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I also had that XYZ-wing, taking out a <9>.
But, the hardest part was finding a pair in B3. Which results in three pairs in B3!
Keith |
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Sat Oct 18, 2008 4:25 am Post subject: |
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Sorry to say, I also used the one-stepper xyz-wing on <179>. It seems to me that it has been over a week since the last VH, and then to have another one-stepper is a "downer".
Ted |
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crunched
Joined: 05 Feb 2008
Posts: 168
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| Posted: Sat Oct 18, 2008 6:52 am Post subject: |
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| tlanglet wrote: | Sorry to say, I also used the one-stepper xyz-wing on <179>....
Ted |
I never saw the 179 wing.
I used the 129 wing!
| Code: |
+------------+--------------+----------+
| 1267 268 4 | 5 129 179 | 19 3 78 |
| 17 3 9 | 6 8 17 | 45 2 45 |
| 127 28 5 | 29 3 4 | 19 6 78 |
+------------+--------------+----------+
| 8 1 3 | 49 49 6 | 7 5 2 |
| 5 9 6 | 3 7 2 | 8 4 1 |
| 4 7 2 | 1 5 8 | 6 9 3 |
+------------+--------------+----------+
| 29 4 7 | 8 6 3 | 25 1 59 |
| 269 5 8 | 249 1249 19 | 3 7 469 |
| 3 26 1 | 7 249 5 | 24 8 469 |
+------------+--------------+----------+
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Play this puzzle online at the Daily Sudoku site |
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cgordon
Joined: 04 May 2007
Posts: 769
Location: ontario, canada
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| Posted: Sat Oct 18, 2008 12:23 pm Post subject: |
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| <129> xyz wing for me. I challenge Marty's contention that it can be done with just basics. Retract that statement or pistols at dawn! |
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crunched
Joined: 05 Feb 2008
Posts: 168
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| Posted: Sat Oct 18, 2008 4:20 pm Post subject: |
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| cgordon wrote: | | <129> xyz wing for me. I challenge Marty's contention that it can be done with just basics. Retract that statement or pistols at dawn! |
This is great. Thanks for taking this on. I will be there. I am selling tickets for the duel. |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Sat Oct 18, 2008 4:52 pm Post subject: |
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| cgordon wrote: | | <129> xyz wing for me. I challenge Marty's contention that it can be done with just basics. Retract that statement or pistols at dawn! |
You can keep your pistol holstered. 
Besides, I wouldn't do anything at dawn, not even go bass fishing.  |
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Sat Oct 18, 2008 11:25 pm Post subject: |
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| crunched wrote: | | tlanglet wrote: | Sorry to say, I also used the one-stepper xyz-wing on <179>....
Ted |
I never saw the 179 wing.
I used the 129 wing!
| Code: |
+------------+--------------+----------+
| 1267 268 4 | 5 129 179 | 19 3 78 |
| 17 3 9 | 6 8 17 | 45 2 45 |
| 127 28 5 | 29 3 4 | 19 6 78 |
+------------+--------------+----------+
| 8 1 3 | 49 49 6 | 7 5 2 |
| 5 9 6 | 3 7 2 | 8 4 1 |
| 4 7 2 | 1 5 8 | 6 9 3 |
+------------+--------------+----------+
| 29 4 7 | 8 6 3 | 25 1 59 |
| 269 5 8 | 249 1249 19 | 3 7 469 |
| 3 26 1 | 7 249 5 | 24 8 469 |
+------------+--------------+----------+
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Just to close the loop, the xyz-wing on <179> is pivoted in r1c6, just one cell to the right of the <129> xyz-wing pivot cell. In fact, both xyz-wings eliminate the <9> in the others pivot cell.
Have a "Happy".
Ted |
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smegly
Joined: 19 Oct 2008
Posts: 4
Location: Texas
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| Posted: Sun Oct 19, 2008 7:32 pm Post subject: |
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| Quote: |
I never saw the 179 wing.
I used the 129 wing!
| Code: |
+------------+--------------+----------+
| 1267 268 4 | 5 129 179 | 19 3 78 |
| 17 3 9 | 6 8 17 | 45 2 45 |
| 127 28 5 | 29 3 4 | 19 6 78 |
+------------+--------------+----------+
| 8 1 3 | 49 49 6 | 7 5 2 |
| 5 9 6 | 3 7 2 | 8 4 1 |
| 4 7 2 | 1 5 8 | 6 9 3 |
+------------+--------------+----------+
| 29 4 7 | 8 6 3 | 25 1 59 |
| 269 5 8 | 249 1249 19 | 3 7 469 |
| 3 26 1 | 7 249 5 | 24 8 469 |
+------------+--------------+----------+
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Never saw either of those! What was much more obvious was the W-wing comprised of [19]'s that told me that both couldn't resolved to 1 since that would leave no possibility of a 1 in column 5. That implies that a 9 has to exist in one of that [19] pair which eliminates the 9 in R1C6. From there it was all downhill as that created a pair of [17]'s in column 6 and immediately solves one of the [19]'s in the W-wing.
smegly |
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