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RobertRattley
Joined: 24 Jun 2007
Posts: 118
Location: Australia
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 Posted: Wed May 04, 2016 1:44 am Post subject: May 4 VH(X) |
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Oh dear! Another VH that, by the definition we've been accepting for all these years, is not "very hard": needs no wings.
But I found it a delightful "hard": it needs a pair, a triple, and then another pair. Before I found these, I'd made a terrific mess with all my "pencil marks". |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Wed May 04, 2016 12:08 pm Post subject: |
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Yes, sir, another "wingless" one.  |
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dongrave
Joined: 06 Mar 2014
Posts: 572
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| Posted: Thu May 05, 2016 1:47 am Post subject: |
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| Wow! I thought I had screwed up again! That's pretty unusual, isn't it Marty? I've only been following this site for a couple of years but this seems pretty unusual to me. |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Thu May 05, 2016 3:17 am Post subject: |
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| Don, it does happen from time to time. I don't know the frequency, but it's just enough so it's not a big surprise. If I knew anything about constructing puzzles, I'd have an understanding as to how it happens. I doubt that Sam INTENDS for it to happen occasionally. |
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Jeff
Joined: 06 May 2007
Posts: 46
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| Posted: Sun May 08, 2016 2:43 am Post subject: |
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| Code: |
+----------------+----------+--------------+
| 2 359 6 | 1 45 8 | 4579 39 379 |
| 1345 1359 1359 | 7 6 29 | 45 8 239 |
| 458 7 589 | 3 45 29 | 4569 1 269 |
+----------------+----------+--------------+
| 9 23 37 | 5 1 4 | 67 26 8 |
| 1578 15 4 | 89 2 6 | 3 59 79 |
| 6 25 58 | 89 3 7 | 1 259 4 |
+----------------+----------+--------------+
| 35 8 2359 | 26 7 1 | 69 4 36 |
| 37 4 237 | 26 9 5 | 8 367 1 |
| 17 6 179 | 4 8 3 | 2 79 5 |
+----------------+----------+--------------+
Here is what I have on this puzzle. I have spent quite a while trying to figure out how to solve this with no avail. All the comments so far indicate that it is very simple. Please tell me what I am missing. Many thanks, Jeff
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dongrave
Joined: 06 Mar 2014
Posts: 572
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| Posted: Sun May 08, 2016 2:48 pm Post subject: |
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I didn't think it was simple; it just didn't require any wings! It's easy to miss. You've got to look a little closer for locked candidates.
| Quote: | | You've got locked 9's in box 7! |
Hey, by the way. How did you eliminate the 9 from r7c9?
I'm glad you printed this grid out because I was wondering if it was at around this point that the computer applied a VH move.
Maybe the 379 XYZ Wing with pivot at r1c9? But then again, maybe not since it doesn't appear to solve it. |
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Jeff
Joined: 06 May 2007
Posts: 46
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| Posted: Sun May 08, 2016 5:56 pm Post subject: |
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I can't believe I missed the locked 9's in Box 7. I eliminated the 9 from R7C9 using a 679 XYZ pivoted in R4C7.
Many thanks. Jeff |
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