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Jan 30 VH

 
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yeoks



Joined: 16 May 2010
Posts: 33

PostPosted: Sat Jan 30, 2016 5:10 am    Post subject: Jan 30 VH Reply with quote

After basics
Code:

+----------------+---------------------+--------------+
| 18    128 5    | 3      4     1278   | 1278 9  6    |
| 9     128 3    | 15678  12567 12678  | 1278 78 4    |
| 7     6   4    | 189    12    1289   | 1238 5  1238 |
+----------------+---------------------+--------------+
| 1568  9   7    | 1568   3     1268   | 4    68 28   |
| 14568 18  168  | 145678 12567 124678 | 2678 3  9    |
| 468   3   2    | 4678   9     4678   | 5    1  78   |
+----------------+---------------------+--------------+
| 168   7   1689 | 1469   16    13469  | 1368 2  5    |
| 2     5   1689 | 1679   167   13679  | 1368 4  138  |
| 3     4   16   | 2      8     5      | 9    67 17   |
+----------------+---------------------+--------------+

Play this puzzle online at the Daily Sudoku site

XY-Wing 68-7 pivot in r4c8; r9c9<>7 and solves.
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Marty R.



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

PostPosted: Sat Jan 30, 2016 1:57 pm    Post subject: Reply with quote

Also a W-Wing (78) in boxes 36, SL 7 in c7 => -8r4c8.
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dongrave



Joined: 06 Mar 2014
Posts: 369

PostPosted: Sat Jan 30, 2016 2:23 pm    Post subject: Reply with quote

Look at all the candidates in that grid! I was sure it was going to take more than one VH move!

Hey Marty, Is that a record for the most candidates in a starting grid? Wow!
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Marty R.



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

PostPosted: Sat Jan 30, 2016 3:21 pm    Post subject: Reply with quote

I don't know if it's a record, but it's an ugly grid indeed. It wasn't easy to finish off because of all those polyvalue cells.
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