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Mar 25 VH

 
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ZeroAssoluto



Joined: 05 Feb 2017
Posts: 942
Location: Rimini, Italy
PostPosted: Sat Mar 25, 2023 10:10 am    Post subject: Mar 25 VH Reply with quote
Hi everyone,

Code:

+------------+------------+--------------+
| 4   5  2   | 13 16  7   | 8   36   9   |
| 368 9  168 | 23 568 258 | 157 3567 4   |
| 368 7  168 | 4  9   58  | 2   356  15  |
+------------+------------+--------------+
| 18  3  9   | 27 478 248 | 15  458  6   |
| 2   46 68  | 5  3   1   | 9   478  78  |
| 7   14 5   | 6  48  9   | 3   2    18  |
+------------+------------+--------------+
| 16  16 4   | 9  2   3   | 57  578  578 |
| 5   8  3   | 17 17  6   | 4   9    2   |
| 9   2  7   | 8  45  45  | 6   1    3   |
+------------+------------+--------------+

Play this puzzle online at the Daily Sudoku site

Quote:
XY-Wing 1,4,8 in r4c1,r6c25 and -8 in r4c56


Ciao Gianni
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TomC



Joined: 30 Oct 2020
Posts: 358
Location: Wales
PostPosted: Sat Mar 25, 2023 12:56 pm    Post subject: Reply with quote
Remove <1> from r6c2 or r4c7 to solve

Code:

+---------------+------------+----------------+
|  4    5   2   | 13 16  7   |  8   36    9   |
|  368  9   168 | 23 568 258 |  157 3567  4   |
|  368  7   168 | 4  9   58  |  2   356   15  |
+---------------+------------+----------------+
| w18   3   9   | 27 478 248 | x15  458   6   |
|  2    46  68  | 5  3   1   |  9   478   78  |
|  7   x14  5   | 6  48  9   |  3   2    w18  |
+---------------+------------+----------------+
|  16   16  4   | 9  2   3   |  57  578   578 |
|  5    8   3   | 17 17  6   |  4   9     2   |
|  9    2   7   | 8  45  45  |  6   1     3   |
+---------------+------------+----------------+

Quote:
If x=1 then w=8 leads to no <8> in row 5 or no <8> in box 5
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