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Jun 18 VH

 
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ZeroAssoluto



Joined: 05 Feb 2017
Posts: 940
Location: Rimini, Italy
PostPosted: Sat Jun 18, 2022 9:28 am    Post subject: Jun 18 VH Reply with quote
Hi everyone,

Code:

+------------+--------------+---------------+
| 489 3  489 | 7    245  6  | 459  1    245 |
| 2   5  7   | 149  34   13 | 3489 6    48  |
| 1   6  49  | 459  2345 8  | 7    34   245 |
+------------+--------------+---------------+
| 34  18 34  | 18   6    9  | 2    5    7   |
| 7   18 2   | 1458 458  15 | 6    9    3   |
| 5   9  6   | 2    37   37 | 48   48   1   |
+------------+--------------+---------------+
| 38  2  1   | 6    9    57 | 3458 3478 458 |
| 6   4  35  | 58   578  2  | 1    37   9   |
| 89  7  589 | 3    1    4  | 58   2    6   |
+------------+--------------+---------------+

Play this puzzle online at the Daily Sudoku site

Quote:
XY-Wing 1,5,8 in r48c4,r5c6 and -5 in r5c4,r7c6
or
W-Wing 3,4 in r3c8,r4c3 SL with number 3 in r8c38 and -4 in r3c3
or
W-Wing 3,7 in r6c5,r8c8 SL with number 3 in r3c58 and -7 in r8c5


Ciao Gianni
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TomC



Joined: 30 Oct 2020
Posts: 358
Location: Wales
PostPosted: Sat Jun 18, 2022 1:58 pm    Post subject: Reply with quote
XY chain abcde or edcba gives pincers of <1> in a+e to remove the <1> in r2c4 and r5c6
Code:

+------------+------------------+---------------+
| 489 3  489 |  7     245    6  | 459  1    245 |
| 2   5  7   | x149   34    e13 | 3489 6    48  |
| 1   6  49  |  459   2345   8  | 7    34   245 |
+------------+------------------+---------------+
| 34  18 34  | a18    6      9  | 2    5    7   |
| 7   18 2   |  1458  458   x15 | 6    9    3   |
| 5   9  6   |  2     37    d37 | 48   48   1   |
+------------+------------------+---------------+
| 38  2  1   |  6     9     c57 | 3458 3478 458 |
| 6   4  35  | b58    578    2  | 1    37   9   |
| 89  7  589 |  3     1      4  | 58   2    6   |
+------------+------------------+---------------+
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TomC



Joined: 30 Oct 2020
Posts: 358
Location: Wales
PostPosted: Sat Jun 18, 2022 2:01 pm    Post subject: Reply with quote
Or you could have -4 in r3c3 to avoid the <89> UR in r19c13
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Mogulmeister



Joined: 03 May 2007
Posts: 1151
PostPosted: Mon Jun 20, 2022 6:48 am    Post subject: Reply with quote
Which is very nice.
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