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daj95376
Joined: 23 Aug 2008
Posts: 3854
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 Posted: Mon Feb 08, 2010 5:51 pm Post subject: Puzzle 10/02/08 (B) |
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XYZ-Wing alert. Only one needed ... but not a single stepper.
| Code: | +-----------------------+
| 5 . . | 6 . . | . . 2 |
| . 1 . | . . . | . . 5 |
| . . . | . . . | . 1 . |
|-------+-------+-------|
| 6 . . | . . 7 | . 5 . |
| . . . | . . 6 | . 9 1 |
| . . . | 5 8 9 | 7 . . |
|-------+-------+-------|
| . . . | . . 1 | . . . |
| . . 6 | 8 5 . | . 4 9 |
| 8 5 . | . 2 . | . 7 . |
+-----------------------+
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Play this puzzle online at the Daily Sudoku site |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Tue Feb 09, 2010 6:02 am Post subject: |
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| I did start with an XYZ (349), but then things came to a halt. I played a useless Hidden UR and finished with a Medusa trap. Medusa can be fun to do, but it's my last resort when I can't find anything else. |
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arkietech
Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
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| Posted: Tue Feb 09, 2010 9:32 am Post subject: |
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A one stepper: | Code: |
*--------------------------------------------------------------------*
| 5 49 7 | 6 1 8 | 49 3 2 |
| 349 1 3489 | 34 7 2 | 4689 68 5 |
| 234 6 2348 | 34 9 5 | 48 1 7 |
|----------------------+----------------------+----------------------|
| 6 23489 2349 | 1 34 7 | 238 5 348 |
| 347 3478 5 | 2 34 6 | 38 9 1 |
| 1234 234 1234 | 5 8 9 | 7 26 346 |
|----------------------+----------------------+----------------------|
| 2349 2349 2349 | 7 6 1 | 5 28 38 |
| 127 27 6 | 8 5 3 | 12 4 9 |
| 8 5 13 | 9 2 4 | 136 7 36 |
*--------------------------------------------------------------------*
(6)r2c7 = (6-1)r9c7 = (1-2)r8c7 = (2-8)r7c8 = (8)r2c8; r2c8<>6, r2c7<>8
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Tue Feb 09, 2010 5:30 pm Post subject: |
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| arkietech wrote: | A one stepper: | Code: |
*--------------------------------------------------------------------*
| 5 49 7 | 6 1 8 | 49 3 2 |
| 349 1 3489 | 34 7 2 | 4689 68 5 |
| 234 6 2348 | 34 9 5 | 48 1 7 |
|----------------------+----------------------+----------------------|
| 6 23489 2349 | 1 34 7 | 238 5 348 |
| 347 3478 5 | 2 34 6 | 38 9 1 |
| 1234 234 1234 | 5 8 9 | 7 26 346 |
|----------------------+----------------------+----------------------|
| 2349 2349 2349 | 7 6 1 | 5 28 38 |
| 127 27 6 | 8 5 3 | 12 4 9 |
| 8 5 13 | 9 2 4 | 136 7 36 |
*--------------------------------------------------------------------*
(6)r2c7 = (6-1)r9c7 = (1-2)r8c7 = (2-8)r7c8 = (8)r2c8; r2c8<>6, r2c7<>8
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Very nice move Dan 
I have made a couple of moves but of questionable (no?) value. I am going to give it a break and try again later.
Ted |
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Clement
Joined: 24 Apr 2006
Posts: 1111
Location: Dar es Salaam Tanzania
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| Posted: Tue Feb 09, 2010 8:33 pm Post subject: |
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The XYZ-Wing <34>-<348>-<38> eliminates 3 in r4c7 leading to a
W-Wing <28>-8=8-<28> which eliminates 2 in r8c7 solving the puzzle. |
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Wed Feb 10, 2010 12:00 am Post subject: |
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| Clement wrote: | The XYZ-Wing <34>-<348>-<38> eliminates 3 in r4c7 leading to a
W-Wing <28>-8=8-<28> which eliminates 2 in r8c7 solving the puzzle. |
Another nice move
Ted |
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