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Jun 08 VH

 
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ZeroAssoluto



Joined: 05 Feb 2017
Posts: 940
Location: Rimini, Italy
PostPosted: Sat Jun 08, 2024 8:55 am    Post subject: Jun 08 VH Reply with quote
Hi everyone,

Code:

+------------+-------+------------+
| 7   2   8  | 4 9 5 | 13   6  13 |
| 19  3   19 | 8 6 7 | 5    4  2  |
| 5   6   4  | 3 1 2 | 79   79 8  |
+------------+-------+------------+
| 4   189 5  | 2 3 6 | 1789 79 19 |
| 69  7   2  | 1 8 4 | 69   3  5  |
| 136 18  13 | 5 7 9 | 168  2  4  |
+------------+-------+------------+
| 8   5   6  | 9 4 3 | 2    1  7  |
| 2   4   39 | 7 5 1 | 39   8  6  |
| 139 19  7  | 6 2 8 | 4    5  39 |
+------------+-------+------------+

Play this puzzle online at the Daily Sudoku site

Quote:

XY-Wing 1,3,9 in r68c3,r9c2 and r46c2<>1
or
W-Wing 1,9 in r2c1,r9c2 SL with 9 in r28c3 and r9c1<>1
or
W-Wing 1,9 in r2c1,r9c2 SL with 9 in r4c2,r5c1 and r9c1<>1


Ciao Gianni
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catti



Joined: 15 Oct 2005
Posts: 9
Location: Pennine Yorkshire
PostPosted: Sat Jun 08, 2024 10:27 am    Post subject: Two possible solutions? Reply with quote
Hello

I appear to have two possible solutions to this one, something I have never experienced before in all the many years I have been doing the puzzles.

Am I correct? Can it be so?

Thank you
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ZeroAssoluto



Joined: 05 Feb 2017
Posts: 940
Location: Rimini, Italy
PostPosted: Mon Jun 10, 2024 8:12 am    Post subject: Reply with quote
Hi catti

It happens several times that a complicated pattern may show multiple ways to be solved or just to allow the solution to proceed.
Techniques such as Simple Color, Skyscraper or 2-String Kite are based on similar concepts and can allow one to delete a number in a cell and proceed in solving the pattern.

Ciao Gianni
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