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Feb 6 VH

 
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Mon Feb 06, 2017 5:20 am    Post subject: Feb 6 VH Reply with quote
Code:

+-----------------+----------+--------------+
| 2    4    6     | 9   7 5  | 8    1   3   |
| 7    38   38    | 4   6 1  | 25   9   25  |
| 9    1    5     | 28  3 28 | 4    67  67  |
+-----------------+----------+--------------+
| 15   57   9     | 37  4 6  | 1235 8   125 |
| 3    5678 178   | 78  2 9  | 15   567 4   |
| 468  2    478   | 5   1 38 | 9    367 67  |
+-----------------+----------+--------------+
| 158  3578 12378 | 123 9 23 | 6    4   15  |
| 1456 56   124   | 126 8 7  | 135  35  9   |
| 16   9    13    | 136 5 4  | 7    2   8   |
+-----------------+----------+--------------+

Play this puzzle online at the Daily Sudoku site
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the_lock_man



Joined: 18 Dec 2012
Posts: 40
Location: Portsmarfff, UK
PostPosted: Mon Feb 06, 2017 12:19 pm    Post subject: Reply with quote
W Wing on 15 in boxes 6 & 9, strong link on 5 in box 3, sets R8C7 <>1, STTE.
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Earl



Joined: 30 May 2007
Posts: 677
Location: Victoria, KS
PostPosted: Mon Feb 06, 2017 2:49 pm    Post subject: Feb 6 VH Reply with quote
156 xy-wing @R9C1; -5 R4C2

Early Earl
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ZeroAssoluto



Joined: 05 Feb 2017
Posts: 1019
Location: Rimini, Italy
PostPosted: Mon Feb 06, 2017 2:57 pm    Post subject: Reply with quote
Hi everyone, I just joined the forum and this is my first post.
I apologize for my bad English.
About this scheme, with W-Wing you can delete the number 1 even in r4c9.
You like to use unique rectangle? Numbre 6,7 in r3c89-r6c89 and r6c8=3.
Ciao
Gianni
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Mon Feb 06, 2017 9:01 pm    Post subject: Reply with quote
ZeroAssoluto wrote:
Hi everyone, I just joined the forum and this is my first post.
I apologize for my bad English.
About this scheme, with W-Wing you can delete the number 1 even in r4c9.
You like to use unique rectangle? Numbre 6,7 in r3c89-r6c89 and r6c8=3.
Ciao
Gianni

Hi Gianni,

Welcome. No need to apologize for your English; it's perfectly clear.

As to the extra elimination from the W-Wing. Yes, that elimination can be made. Earl showed just the one elimination because it was enough to complete the puzzle.

Unique Rectangles (URs) are used by many players, but we don't see too many used on these puzzles.
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