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Puzzle 10/02/08 (C)

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854

PostPosted: Mon Feb 08, 2010 5:51 pm    Post subject: Puzzle 10/02/08 (C) Reply with quote

Rated XY.

Code:
 +-----------------------+
 | 9 . . | . 2 8 | . 4 . |
 | . 8 . | . 5 4 | . 1 . |
 | . . 5 | . . . | . . . |
 |-------+-------+-------|
 | . . . | . 4 2 | . . 1 |
 | 3 4 . | 5 . 6 | . . . |
 | 1 5 . | 8 7 . | . . . |
 |-------+-------+-------|
 | . . . | . . . | . 5 8 |
 | 8 1 . | . . . | 2 6 . |
 | . . . | 2 . . | 1 . 7 |
 +-----------------------+

Play this puzzle online at the Daily Sudoku site
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills

PostPosted: Tue Feb 09, 2010 3:41 pm    Post subject: Reply with quote

One step.

Quote:
w-wing on 27 in r3c2 & r7c1 with grouped strong link 7 in r8c34:
(7)r8c3 = (7=2)r7c1,
(7)r8c4 - (7)r123c4 = (7)r3c6 - (7=2)r3c2.


Ted
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA

PostPosted: Tue Feb 09, 2010 8:46 pm    Post subject: Reply with quote

I played a useless XY-Wing (793) and Hidden UR (78). The W-Wing (27) wasn't enough for me to finish but the Type 1 UR (17) was.

Last edited by Marty R. on Wed Feb 10, 2010 12:19 am; edited 1 time in total
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills

PostPosted: Tue Feb 09, 2010 11:55 pm    Post subject: Reply with quote

Marty R. wrote:
I played a useless XY-Wing (793) and Hidden UR (78). The W-Wing (27) wasn't enough for me to finish but the Type 1 UR (17) was.


Marty,

Was your w-wing on 27 the same as I posted?

I looked at the puzzle again. The w-wing deletes the 2 in r2c1 and r7c2 and basics completed the job.

Ted
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA

PostPosted: Wed Feb 10, 2010 12:24 am    Post subject: Reply with quote

Quote:
Was your w-wing on 27 the same as I posted?

I think so, unless another one was available in boxes 17. Mine was connected by 7s in c6.
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