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Earl
Joined: 30 May 2007
Posts: 677
Location: Victoria, KS
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 Posted: Sat Feb 21, 2009 3:04 am Post subject: Feb 21 VH |
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A (458) xy-wing does it.
Early Earl |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Sat Feb 21, 2009 4:50 am Post subject: |
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| Yep, I played a 58 W-Wing first because it was there, then your XY-Wing. |
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crunched
Joined: 05 Feb 2008
Posts: 168
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| Posted: Sat Feb 21, 2009 5:16 am Post subject: |
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A 2-5-6 xy wing (see boxes 7 & 8 ) was the cure for me---or so I thought.
But then I had to find another xy wing, the one you folks first found. See second grid below, in the top row of boxes.
| Code: |
+----------------+-----------------+--------------+
| 7 3 89 | 4 2 89 | 6 1 5 |
| 145 589 489 | 35689 5689 3689 | 348 7 2 |
| 45 2 6 | 358 1 378 | 348 34 9 |
+----------------+-----------------+--------------+
| 9 1 3478 | 2 468 368 | 3478 5 348 |
| 346 68 5 | 7 4689 1 | 2 34 348 |
| 234 78 23478 | 38 48 5 | 13478 9 6 |
+----------------+-----------------+--------------+
| 2356 56 23 | 156 7 26 | 9 8 134 |
| 25 4 2379 | 1589 589 289 | 13 6 13 |
| 8 69 1 | 69 3 4 | 5 2 7 |
+----------------+-----------------+--------------+
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[url=http://www.dailysudoku.com/sudoku/play.shtml?p=7:3:89:4:2:89:6:1:5:145:589:489:35689:5689:3689:348:7:2:45:2:6:358:1:378:348:34:9:9:1:3478:2:468:368:3478:5:348:346:68:5:7:4689:1:2:34:348:234:78:23478:38:48:5:13478:9:6:2356:56:23:156:7:26:9:8:134: 25:4:2379:1589:589:289:13:6:13:8:69:1:69:3:4:5:2:7:]Play this puzzle online[/url] at the Daily Sudoku site
| Code: |
+-----------+-------------+---------+
| 7 3 89 | 4 2 89 | 6 1 5 |
| 1 58 489 | 3589 568 36 | 48 7 2 |
| 45 2 6 | 58 1 7 | 48 3 9 |
+-----------+-------------+---------+
| 9 1 48 | 2 46 36 | 7 5 38 |
| 36 68 5 | 7 9 1 | 2 4 38 |
| 34 7 2 | 38 48 5 | 1 9 6 |
+-----------+-------------+---------+
| 56 56 3 | 1 7 2 | 9 8 4 |
| 2 4 7 | 589 58 89 | 3 6 1 |
| 8 9 1 | 6 3 4 | 5 2 7 |
+-----------+-------------+---------+
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Play this puzzle online at the Daily Sudoku site |
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George Woods
Joined: 28 Mar 2006
Posts: 304
Location: Dorset UK
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| Posted: Sat Feb 21, 2009 10:12 am Post subject: similar to last one |
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At the crunch point (see above) there are two apparently equivalent routes one an XY wing 458 the other a W Wing using 58s.
Both of these lead to a solution of row 3 and hence the remainder of the puzzle
This is almost the same as the last VH where both the XY wing and W Wing
lead to solution of the same row! |
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nataraj
Joined: 03 Aug 2007
Posts: 1048
Location: near Vienna, Austria
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| Posted: Sat Feb 21, 2009 10:52 am Post subject: |
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Basically, an "easy" with a hard to miss xy-wing added.
For more of a challenge, try yesterday's vh squiggly. |
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cgordon
Joined: 04 May 2007
Posts: 769
Location: ontario, canada
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| Posted: Sat Feb 21, 2009 2:03 pm Post subject: |
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| A 489 xyz wing for me. |
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Wendy W
Joined: 04 Feb 2008
Posts: 144
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| Posted: Sun Feb 22, 2009 12:11 am Post subject: |
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Here are my 2 cents: as usual, I did it the same way "Early" Earl did.
No Sudoku for me all last week -- I was proofreading a neuroanatomy text and my eyes were all done in by the end of the day. |
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DennyOR
Joined: 12 Sep 2007
Posts: 33
Location: Portland, Oregon
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| Posted: Mon Feb 23, 2009 8:03 pm Post subject: |
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| Or: 58-89-98-85 |
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