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Mar 18 VH

 
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ZeroAssoluto



Joined: 05 Feb 2017
Posts: 942
Location: Rimini, Italy
PostPosted: Sat Mar 18, 2023 10:26 am    Post subject: Mar 18 VH Reply with quote
Hi everyone,

Code:

+---------+------------+------------+
| 8 1 237 | 2345 45 79 | 34 6   459 |
| 6 5 237 | 234  8  79 | 1  23  49  |
| 9 4 23  | 6    1  35 | 7  238 58  |
+---------+------------+------------+
| 4 6 1   | 7    3  8  | 5  9   2   |
| 2 7 5   | 1    9  6  | 34 38  48  |
| 3 8 9   | 45   45 2  | 6  1   7   |
+---------+------------+------------+
| 1 9 6   | 8    7  4  | 2  5   3   |
| 5 3 4   | 9    2  1  | 8  7   6   |
| 7 2 8   | 35   6  35 | 9  4   1   |
+---------+------------+------------+

Play this puzzle online at the Daily Sudoku site

Quote:
XYZ-Wing 4,5,9 in r1c59,r2c9 and -4 in r1c7


Ciao Gianni
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TomC



Joined: 30 Oct 2020
Posts: 358
Location: Wales
PostPosted: Sat Mar 18, 2023 6:07 pm    Post subject: Reply with quote
Remove <5> from r1c9 or r3c6 to solve

Code:

+---------+--------------+----------------+
| 8 1 237 | 2345 a45  79 | b34  6    x459 |
| 6 5 237 | 234   8   79 |  1   23    49  |
| 9 4 23  | 6     1  x35 |  7   238  e58  |
+---------+--------------+----------------+
| 4 6 1   | 7     3   8  |  5   9     2   |
| 2 7 5   | 1     9   6  | c34  38   d48  |
| 3 8 9   | 45    45  2  |  6   1     7   |
+---------+--------------+----------------+
| 1 9 6   | 8     7   4  |  2   5     3   |
| 5 3 4   | 9     2   1  |  8   7     6   |
| 7 2 8   | 35    6   35 |  9   4     1   |
+---------+--------------+----------------+

Quote:
XY chain abcde gives pincers of <5> in a + e to remove <5> from x
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