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Aug 13 VH

 
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ZeroAssoluto



Joined: 05 Feb 2017
Posts: 868
Location: Rimini, Italy

PostPosted: Thu Aug 13, 2020 8:56 am    Post subject: Aug 13 VH Reply with quote

Hi everyone,

Code:

+-------+-----------+------------+
| 1 9 4 | 78 78  5  | 6   2   3  |
| 5 3 6 | 19 2   19 | 7   4   8  |
| 7 2 8 | 4  3   6  | 15  159 59 |
+-------+-----------+------------+
| 2 6 9 | 17 17  3  | 58  58  4  |
| 4 7 1 | 5  89  89 | 3   68  26 |
| 3 8 5 | 6  4   2  | 9   7   1  |
+-------+-----------+------------+
| 6 1 3 | 89 5   4  | 2   89  7  |
| 8 5 2 | 3  169 7  | 4   169 69 |
| 9 4 7 | 2  168 18 | 158 3   56 |
+-------+-----------+------------+

Play this puzzle online at the Daily Sudoku site

Quote:
W-Wing 8,9 in r5c5,r7c4 SL with number 8 in r1c45 and -9 in r8c5
or
W-Wing 8,9 in r5c6,r7c4 SL with number 9 in r2c46 and -8 in r9c6
or
XY-Wing 1,8,9 in r27c4,r9c6 and -1 in r2c6
or
XY-Wing 1,8,9 in r29c6,r7c4 and -9 in r2c4


Ciao Gianni
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dongrave



Joined: 06 Mar 2014
Posts: 563

PostPosted: Thu Aug 13, 2020 10:41 am    Post subject: Reply with quote

I used the XY wing that Gianni listed. Note that in his grid the 8's are LC's in box 5 (i.e. r5c56) so r5c8=6 and r5c9=2.
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immpy



Joined: 06 May 2017
Posts: 570

PostPosted: Thu Aug 13, 2020 6:27 pm    Post subject: Reply with quote

Yes, and/or in r4c78 as well.
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