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Jun 10 VH

 
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ZeroAssoluto



Joined: 05 Feb 2017
Posts: 863
Location: Rimini, Italy

PostPosted: Sat Jun 10, 2023 10:02 am    Post subject: Jun 10 VH Reply with quote

Hi everyone,

Code:

+------------+----------------+-------------+
| 6   1   5  | 47   47   39   | 2   389 38  |
| 239 249 34 | 23   8    6    | 7   1   5   |
| 23  7   8  | 1    29   5    | 4   39  6   |
+------------+----------------+-------------+
| 5   249 1  | 2348 249  7    | 39  6   348 |
| 7   49  6  | 348  5    1389 | 139 38  2   |
| 239 8   34 | 6    1249 19   | 5   7   14  |
+------------+----------------+-------------+
| 8   6   2  | 9    17   4    | 13  5   137 |
| 4   5   9  | 78   3    18   | 6   2   17  |
| 1   3   7  | 5    6    2    | 8   4   9   |
+------------+----------------+-------------+

Play this puzzle online at the Daily Sudoku site

Quote:
W-Wing 3,8 in r1c9,r5c8 SL with number 3 in r15c6 and -8 in r1c8,r4c9
or
Finned X-Wing with number 3 in r15c68 finned in r3c8 and -3 in r1c9
or 2 Sue de Coq


Ciao Gianni
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dongrave



Joined: 06 Mar 2014
Posts: 560

PostPosted: Sat Jun 10, 2023 1:54 pm    Post subject: Reply with quote

Using just VH moves (i.e. X-Wings, XY-Wings, and XYZ-Wings) there's a 2 X-Wing in rows 3 and 6 (-2r2c1,-2r4c5) which opens up a 19-4 XY-Wing at r4c5,r6c69 (-4r4c9,-4r6c5) which solves it.
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TomC



Joined: 30 Oct 2020
Posts: 347
Location: Wales

PostPosted: Sun Jun 11, 2023 8:49 am    Post subject: Reply with quote

If r45c7 is a <39> pair, then r5c8=8, also r7c7=1, r7c5=7, r8c4=8

this leads to no <8> in row 4, meaning r5c7=1 to solve
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