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Nov 7 VH

 
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ZeroAssoluto



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

PostPosted: Tue Nov 07, 2017 8:27 am    Post subject: Nov 7 VH Reply with quote

Hi everyone,

Code:

+----------+-----------+---------+
| 2 6   19 | 5  4   8  | 7 19 3  |
| 3 5   7  | 2  19  6  | 8 19 4  |
| 8 19  4  | 17 3   79 | 5 6  2  |
+----------+-----------+---------+
| 7 4   5  | 9  2   3  | 6 8  1  |
| 1 28  28 | 4  6   5  | 3 7  9  |
| 9 3   6  | 8  7   1  | 4 2  5  |
+----------+-----------+---------+
| 5 179 3  | 6  189 79 | 2 4  78 |
| 6 279 29 | 3  89  4  | 1 5  78 |
| 4 178 18 | 17 5   2  | 9 3  6  |
+----------+-----------+---------+

Play this puzzle online at the Daily Sudoku site

Quote:
Skyscraper with number 1 in r3c24,r7c25 and -1 in r2c5,r9c4
or
Skyscraper with number 1 in r19c3,r39c4 and -1 in r3c2
or
W-Wing 1,9 in r2c5,r3c2 connected by number 1 in r7c25 and -9 in r3c6


Ciao Gianni
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hughwill



Joined: 05 Apr 2010
Posts: 422
Location: Birmingham UK

PostPosted: Tue Nov 07, 2017 12:50 pm    Post subject: Reply with quote

89-7 XY-wing pivot r8c5 (or 79-8 pivot r7c6 if preferred) followed by
17-9 XY-wing pivot r6c2 (once again with a twin...) - r3c6 <>9 which leads to stte.
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Marty R.



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

PostPosted: Tue Nov 07, 2017 6:24 pm    Post subject: Reply with quote

Or DP (78-89-79) in r78c259. Killers yield common outcome of r2c5=9.
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