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keith
Joined: 19 Sep 2005 Posts: 3355 Location: near Detroit, Michigan, USA
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Posted: Fri Jan 18, 2008 10:55 pm Post subject: Buffalo sauce with that? |
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Here's a good one, I think ....
Code: | Puzzle: M3639296sh(16)
+-------+-------+-------+
| . 7 . | . 9 . | . . . |
| . . 2 | . 3 . | . . 8 |
| . 5 . | 4 . 2 | . . . |
+-------+-------+-------+
| . . 9 | 3 . 1 | 5 . . |
| 4 2 . | . . . | . 8 1 |
| . . 1 | 2 . 8 | 9 . . |
+-------+-------+-------+
| . . . | 8 . 9 | . 6 . |
| 1 . . | . 5 . | 8 . . |
| . . . | . 1 . | . 5 . |
+-------+-------+-------+ |
Keith |
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Earl
Joined: 30 May 2007 Posts: 677 Location: Victoria, KS
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Posted: Fri Jan 18, 2008 11:31 pm Post subject: Good one |
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After coloring a few times, I needed a long xy-chain to eliminate the 9 in R2C8, which solved the puzzle. Anyone do it without a chain?
Earl
Last edited by Earl on Fri Jan 18, 2008 11:35 pm; edited 1 time in total |
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keith
Joined: 19 Sep 2005 Posts: 3355 Location: near Detroit, Michigan, USA
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Posted: Fri Jan 18, 2008 11:34 pm Post subject: |
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Earl,
The hint is in the title. It is a lot of (XY, XYZ) wings.
Keith |
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Marty R.
Joined: 12 Feb 2006 Posts: 5770 Location: Rochester, NY, USA
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Posted: Sat Jan 19, 2008 2:03 am Post subject: |
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Quote: | The hint is in the title. It is a lot of (XY, XYZ) wings. |
That was too subtle for me. The sledgehammer approach works better.
I used a W-Wing, an XY-Wing and then an XY-Wing with pincer coloring blew it wide open. |
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keith
Joined: 19 Sep 2005 Posts: 3355 Location: near Detroit, Michigan, USA
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Posted: Sat Jan 19, 2008 3:22 am Post subject: |
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After the basics:
Code: | +-------------------+-------------------+-------------------+
| 8 7 4 | 1 9 6 | 2 3 5 |
| 69 1 2 | 5 3 7 | 46 49 8 |
| 369 5 36 | 4 8 2 | 67 1 679 |
+-------------------+-------------------+-------------------+
| 67 8 9 | 3 467 1 | 5 247 2467 |
| 4 2 367 | 9 67 5 | 367 8 1 |
| 5 36 1 | 2 467 8 | 9 47 3467 |
+-------------------+-------------------+-------------------+
| 37 34 5 | 8 2 9 | 1 6 347 |
| 1 3469 367 | 67 5 34 | 8 2479 23479 |
| 2 3469 8 | 67 1 34 | 347 5 3479 |
+-------------------+-------------------+-------------------+ |
A beautiful XY-wing <367> takes out <3> in R789C2. Leading, after some work to another nice one:
Code: | +-------------------+-------------------+-------------------+
| 8 7 4 | 1 9 6 | 2 3 5 |
| 69 1 2 | 5 3 7 | 46 49 8 |
| 369 5 36 | 4 8 2 | 67 1 79 |
+-------------------+-------------------+-------------------+
| 67 8 9 | 3 467 1 | 5 247 2467 |
| 4 2 67 | 9 67 5 | 3 8 1 |
| 5 3 1 | 2 467 8 | 9 47 467 |
+-------------------+-------------------+-------------------+
| 37 4 5 | 8 2 9 | 1 6 37 |
| 1 69 37 | 67 5 34 | 8 2479 23479 |
| 2 69 8 | 67 1 34 | 47 5 3479 | |
<479> takes out <7> in R46C9.
And, <347> takes out <3> in R9C9.
Finally, an XYZ <479> takes out <7> from R78C9.
The puzzle is done! Very good wings, I thought.
Keith |
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Asellus
Joined: 05 Jun 2007 Posts: 865 Location: Sonoma County, CA, USA
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Posted: Sat Jan 19, 2008 7:54 am Post subject: |
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In the initial grid there is a Kite (pivot b4) that removes <3> from r8c9 and makes the final XYZ Wing in Keith's path unnecessary.
[Edit to correct typo] |
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Victor
Joined: 29 Sep 2005 Posts: 207 Location: NI
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Posted: Sun Jan 20, 2008 7:39 pm Post subject: |
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Nice puzzle in a nice day for puzzles - good VH also. |
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