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Apr 07 VH

 
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dongrave



Joined: 06 Mar 2014
Posts: 568
PostPosted: Thu Apr 07, 2022 1:16 pm    Post subject: Apr 07 VH Reply with quote
After basics: (grid corrected to include a 4 at r6c3 (typo), thanks TomC!)
Code:
+--------------+--------------+--------------+
| 8   57  1257 | 6   245  3   | 9   127 145  |
| 35  4   257  | 8   1    9   | 357 237 6    |
| 6   359 1259 | 7   245  45  | 8   123 1345 |
+--------------+--------------+--------------+
| 2   8   6    | 39  3579 57  | 4   137 13   |
| 35  1   57   | 4   6    2   | 37  9   8    |
| 9   37  4    | 1   37   8   | 6   5   2    |
+--------------+--------------+--------------+
| 14  259 8    | 39  3479 47  | 12  6   579  |
| 7   6   59   | 2   8    1   | 35  4   359  |
| 14  29  3    | 5   479  6   | 12  8   79   |
+--------------+--------------+--------------+

37-5 XY-Wing with pivot at r6c2 and -5 in r2c1
(or 57-3 XY-Wing with pivot at r1c2 and -3 in r5c1).

Last edited by dongrave on Thu Apr 07, 2022 1:46 pm; edited 1 time in total
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TomC



Joined: 30 Oct 2020
Posts: 358
Location: Wales
PostPosted: Thu Apr 07, 2022 1:33 pm    Post subject: Reply with quote
Code:

+--------------+------------+---------------+
| 8   57  1257 | 6  245  3  | 9    127 145  |
| 35c 4   257  | 8  1    9  | 357b 237 6    |
| 6   359 1259 | 7  245  45 | 8    123 1345 |
+--------------+------------+---------------+
| 2   8   6    | 39 3579 57 | 4    137 13   |
| 35x 1   57   | 4  6    2  | 37x  9   8    |
| 9   37  4    | 1  37   8  | 6    5   2    |
+--------------+------------+---------------+
| 14  259 8    | 39 3479 47 | 12   6   579  |
| 7   6   59   | 2  8    1  | -35a 4   359  |
| 14  29  3    | 5  479  6  | 12   8   79   |
+--------------+------------+---------------+

Play this puzzle online at the Daily Sudoku site

If a=3, b=5, c=3 leads to no <3> in row 5, so a=5 to solve

This could also be a <35> W wing in <c> and <a> giving -5 in (b)
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TomC



Joined: 30 Oct 2020
Posts: 358
Location: Wales
PostPosted: Thu Apr 07, 2022 5:07 pm    Post subject: Reply with quote
Another 37-5 XY wing pivot r5c7, -5 in r8c3
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ZeroAssoluto



Joined: 05 Feb 2017
Posts: 940
Location: Rimini, Italy
PostPosted: Sat Apr 09, 2022 9:39 am    Post subject: Reply with quote
Hi everyone,

W-Wing 5,7 in r1c2,r5c3 SL with number 5 in r25c1 and -7 in r12c3,r6c2
W-Wing 3,5 in r2c1,r8c7 SL with number 3 in r5c17 and -5 in r2c7

Ciao Gianni
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