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Set G Puzzle 34

 
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daj95376



Joined: 23 Aug 2008
Posts: 3855

PostPosted: Tue Dec 16, 2008 12:13 am    Post subject: Set G Puzzle 34 Reply with quote

Dedicated, but not limited, to Ted ... no Naked Quads! Very Happy

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 . . |
 +-----------------------+

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

PostPosted: Tue Dec 16, 2008 8:43 am    Post subject: Reply with quote

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: 3855

PostPosted: Tue Dec 16, 2008 9:15 am    Post subject: Reply with quote

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 Exclamation
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tlanglet



Joined: 17 Oct 2007
Posts: 2461
Location: Northern California Foothills

PostPosted: Tue Dec 16, 2008 1:54 pm    Post subject: Re: Set G Puzzle 34 Reply with quote

daj95376 wrote:
Dedicated, but not limited, to Ted ... no Naked Quads! Very Happy

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 Very Happy
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Marty R.



Joined: 12 Feb 2006
Posts: 5165
Location: Rochester, NY, USA

PostPosted: Tue Dec 16, 2008 5:23 pm    Post subject: Reply with quote

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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