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daj95376
Joined: 23 Aug 2008
Posts: 3854
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 Posted: Sun Jul 12, 2009 9:34 pm Post subject: Puzzle VH_057 |
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| Code: | +-----------------------+
| 1 . . | 9 . . | . . 3 |
| . 8 . | . . 6 | . . . |
| . . 6 | 1 7 . | 9 . . |
|-------+-------+-------|
| 5 . 1 | 4 . 7 | 8 . . |
| . . 8 | . 1 . | 5 . 6 |
| . 6 . | 8 . 9 | . 1 . |
|-------+-------+-------|
| . . 7 | 3 9 . | 6 . . |
| . . . | . . 2 | . 9 . |
| 6 . . | . 8 . | . . 1 |
+-----------------------+
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Play this puzzle online at the Daily Sudoku site |
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Mon Jul 13, 2009 2:05 pm Post subject: |
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Still another nice VH puzzle. | Quote: | Ignoring the Type 1 UR, I used
x-wing 2 in r69c37,
xy-wing 34-7 with pivot 34 in r9c8 and a transport,
xy-wing 23-4 with pivot 23 in r4c2 and a transport.
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Ted |
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gindaani
Joined: 06 Mar 2009
Posts: 79
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| Posted: Mon Jul 13, 2009 9:21 pm Post subject: |
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After the basics, I had:
| Code: |
+---------------+-------+----------------+
| 1 457 45 | 9 2 8 | 47 6 3 |
| 479 8 49 | 5 3 6 | 1 247 247 |
| 23 23 6 | 1 7 4 | 9 58 58 |
+---------------+-------+----------------+
| 5 23 1 | 4 6 7 | 8 23 9 |
| 479 479 8 | 2 1 3 | 5 47 6 |
| 2347 6 234 | 8 5 9 | 2347 1 247 |
+---------------+-------+----------------+
| 248 45 7 | 3 9 1 | 6 2458 2458 |
| 38 1 35 | 6 4 2 | 37 9 578 |
| 6 49 2349 | 7 8 5 | 234 234 1 |
+---------------+-------+----------------+
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Play this puzzle online at the Daily Sudoku site
I don't see any Type 1 UR to ignore. 
I used:
| Quote: | 7 skyscraper
4 x-wing
249 xy-wing
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Mon Jul 13, 2009 9:32 pm Post subject: |
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| gindaani wrote: | After the basics, I had:
| Code: |
+---------------+-------+----------------+
| 1 457 45 | 9 2 8 | 47 6 3 |
| 479 8 49 | 5 3 6 | 1 247 247 |
| 23 23 6 | 1 7 4 | 9 58 58 |
+---------------+-------+----------------+
| 5 23 1 | 4 6 7 | 8 23 9 |
| 479 479 8 | 2 1 3 | 5 47 6 |
| 2347 6 234 | 8 5 9 | 2347 1 247 |
+---------------+-------+----------------+
| 248 45 7 | 3 9 1 | 6 2458 2458 |
| 38 1 35 | 6 4 2 | 37 9 578 |
| 6 49 2349 | 7 8 5 | 234 234 1 |
+---------------+-------+----------------+ |
Play this puzzle online at the Daily Sudoku site
I don't see any Type 1 UR to ignore.
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If you look in col8, I believe that you will find a naked quad 2347 that deletes the 24 in r7c8 and forms a Type 1 UR 58 in r37c89.
Ted |
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