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daj95376
Joined: 23 Aug 2008 Posts: 3854
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Posted: Tue Dec 16, 2008 12:13 am Post subject: Set G Puzzle 34 |
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Dedicated, but not limited, to Ted ... no Naked Quads!
Code: | +-----------------------+
| . 9 2 | . 1 . | 7 . 6 |
| 8 . . | 5 9 . | . 1 . |
| 1 . 5 | . . . | 8 . . |
|-------+-------+-------|
| . 1 . | 3 . . | 6 . . |
| 5 2 . | . 8 . | . . . |
| . . . | . . 1 | . . 9 |
|-------+-------+-------|
| 2 . 7 | 1 . . | . 6 8 |
| . 8 . | . . . | 2 . . |
| 3 . . | . . 8 | 5 . . |
+-----------------------+
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Play this puzzle online at the Daily Sudoku site
Last edited by daj95376 on Tue Dec 16, 2008 9:17 am; edited 1 time in total |
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storm_norm
Joined: 18 Oct 2007 Posts: 1741
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Posted: Tue Dec 16, 2008 8:43 am Post subject: |
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Ted, since this one is for you, I won't post any hints. but i would like to interject with this...
Code: | .------------------.------------------.------------------.
| 4 9 2 | 8 1 3 | 7 5 6 |
| 8 367 36 | 5 9 267 | 34 1 234 |
| 1 367 5 | 2467 2467 267 | 8 9 23 |
:------------------+------------------+------------------:
| 79 1 489 | 3 247 279 | 6 28 5 |
| 5 2 3469 | 46 8 69 | 1 (3)47 (3)47 |
| 67 #346 3468 | 2467 5 1 |#34 28 9 |
:------------------+------------------+------------------:
| 2 5 7 | 1 3 4 | 9 6 8 |
| 69 8 #14 | 679 67 5 | 2 34 -134 |
| 3 #46 1469 | 269 26 8 | 5 47 (1)47 |
'------------------'------------------'------------------' |
47URr59c89[(1)r9c9 = (3)r5c89] - (3=4)r6c7 - (4)r6c2 = (4)r9c2 - (4=1)r8c3; r8c9 <> 1
the 1 in r9c9 and the 3's in r5c89 can't both be false due to the UR in r59c89. that leads around to the elimination of 1 in r8c9. |
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daj95376
Joined: 23 Aug 2008 Posts: 3854
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Posted: Tue Dec 16, 2008 9:15 am Post subject: |
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Clarification: What I meant to say is that Ted should like this puzzle because it doesn't need any Naked Quads like an earlier puzzle that he found troublesome. I would never post a puzzle for just one person! Everyone is welcome to post a solution to this puzzle |
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tlanglet
Joined: 17 Oct 2007 Posts: 2468 Location: Northern California Foothills
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Posted: Tue Dec 16, 2008 1:54 pm Post subject: Re: Set G Puzzle 34 |
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daj95376 wrote: | Dedicated, but not limited, to Ted ... no Naked Quads!
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Thanks for the consideration Danny; no quads. In fact I don't even recall naked pairs.
strorm_norm wrote: | 47URr59c89[(1)r9c9 = (3)r5c89] - (3=4)r6c7 - (4)r6c2 = (4)r9c2 - (4=1)r8c3; r8c9 <> 1 |
I spotted the potential UR<34> inr58c89 and gave it up as useless without ever noticing your UR<47>. Good move.......
However, I did solve the puzzle in four steps as follows: Quote: | Kite<3>, xy-wing<679>, xy-wing<246> with two additional transports, xy-wing<679> |
Ted |
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Marty R.
Joined: 12 Feb 2006 Posts: 5770 Location: Rochester, NY, USA
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Posted: Tue Dec 16, 2008 5:23 pm Post subject: |
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I used an XY-Wing on 697 plus a pincer transport, XY-Wing on 246, W-Wing on 34 and a Kite on 3 to finish it off. At that time there was a BUG+1 available, plus probably other solutions as well. |
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