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Daily Sudoku Competition for Mar 4, 2011

 
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storm_norm



Joined: 18 Oct 2007
Posts: 1741
PostPosted: Sun Mar 06, 2011 8:14 pm    Post subject: Daily Sudoku Competition for Mar 4, 2011 Reply with quote
800000290000070400004200010000109000150800003000006000030002900005080000298000007

Code:

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

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Asellus



Joined: 05 Jun 2007
Posts: 865
Location: Sonoma County, CA, USA
PostPosted: Mon Mar 07, 2011 5:20 am    Post subject: Reply with quote
It has a 1-step solution.
Quote:
14 W-Wing
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Mon Mar 07, 2011 10:13 pm    Post subject: Reply with quote
Another one step solution, but messy. It was the first (and only) pattern I checked.

Quote:
AUR(67)r47c13 internal sis: r4c1=3, r7c1=4, r7c3=1; r7c4<>7
(3)r4c1-(3=5)r4c5-(5=7)r6c4
||
(4)r7c1-r8c2=r4c2-r4c9=r56c8-r9c8=r9c5-(4=7)r8c6
||
(1)r7c3-(1=4)r8c2-(4=7)r8c6

Ted
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Fri Mar 11, 2011 5:31 am    Post subject: Reply with quote
I must've missed the W-Wing, but played a 14 M-Wing.
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