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Puzzle NR 09/12/22 (B)

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854

PostPosted: Tue Dec 22, 2009 6:35 pm    Post subject: Puzzle NR 09/12/22 (B) Reply with quote

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

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: Wed Dec 23, 2009 1:57 am    Post subject: Reply with quote

Hope I did not mess up basics since an obvious single step did the deed.
Quote:
type 2 UR 15 in r36c78 deletes 6 in r5c9, r6c12

Ted
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daj95376



Joined: 23 Aug 2008
Posts: 3854

PostPosted: Wed Dec 23, 2009 5:12 am    Post subject: Reply with quote

I do not always check a puzzle for extraneous steps before posting it. This puzzle has three extraneous steps ... apparently!
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Marty R.



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

PostPosted: Wed Dec 23, 2009 5:37 am    Post subject: Reply with quote

I apparently used extraneous steps. An XY-Wing (194) with pincer transport and a W-Wing on 46. By that time the 15 UR was a Type 1.
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