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daj95376
Joined: 23 Aug 2008
Posts: 3854
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 Posted: Thu Dec 17, 2009 5:05 pm Post subject: Puzzle NR 09/12/17 (A) |
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| Code: | +-----------------------+
| 1 . . | . . 9 | 2 . . |
| . . . | . 7 . | . . 3 |
| . . 3 | 2 . . | 9 . . |
|-------+-------+-------|
| . . 1 | . . 7 | 8 . . |
| . 6 . | . 9 . | . . 2 |
| 9 . . | 4 . 2 | . 3 . |
|-------+-------+-------|
| 7 . 4 | 1 . . | . 9 8 |
| . . . | . . 4 | 1 2 . |
| . 1 . | . 5 . | 7 . . |
+-----------------------+
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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: Fri Dec 18, 2009 12:50 am Post subject: |
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I enjoyed this puzzle very much..........
| Quote: | x-wing 1 in r25c68,
x-wing 5 in r14c48.\,
AIC formed by extending the vertex of a potential xy-wing5-68,
finned x-wing on 7 in r36c29
x-wing 8 in r15c34, and a
BUG+1 completes the puzzle.
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Ted |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Fri Dec 18, 2009 1:16 am Post subject: |
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| This grid was very cluttered and I had nothing but a couple of ERs on 1 when I hit the wall. But I noticed an X-Wing on 5 which opened up an XY-Wing on 386 and a puzzle-ending W-Wing on 18. |
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tlanglet
Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
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| Posted: Fri Dec 18, 2009 1:25 am Post subject: |
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| Marty R. wrote: | | This grid was very cluttered and I had nothing but a couple of ERs on 1 when I hit the wall. But I noticed an X-Wing on 5 which opened up an XY-Wing on 386 and a puzzle-ending W-Wing on 18. |
Marty,
Many times you and I have very similar solutions since we both are somewhat mechanical oriented and follow a regular sequence when looking for patterns. However, this time we greatly deviated. Interesting........
Ted |
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Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
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| Posted: Fri Dec 18, 2009 4:50 am Post subject: |
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| Ted, it looks like you continued looking for X-Wings, whereas I stopped after I found one. I hate looking for X-Wings and generally look as a last resort. Perhaps it's because I don't know how to look efficiently. See Keith's post in the Solving Techniques sub-forum. |
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