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Jan 18 VH

 
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ZeroAssoluto



Joined: 05 Feb 2017
Posts: 684
Location: Rimini, Italy

PostPosted: Tue Jan 18, 2022 9:47 am    Post subject: Jan 18 VH Reply with quote

Hi everyone,

Code:

+------------+-----------+-----------+
| 39  8  5   | 7   39  1 | 4  6  2   |
| 19  4  7   | 6   2   8 | 3  19 5   |
| 2   36 169 | 349 349 5 | 89 7  189 |
+------------+-----------+-----------+
| 136 36 2   | 19  5   4 | 69 8  7   |
| 8   7  16  | 139 139 2 | 5  4  69  |
| 5   9  4   | 8   6   7 | 1  2  3   |
+------------+-----------+-----------+
| 69  1  69  | 2   78  3 | 78 5  4   |
| 4   2  8   | 5   17  9 | 67 3  16  |
| 7   5  3   | 14  148 6 | 2  19 189 |
+------------+-----------+-----------+

Play this puzzle online at the Daily Sudoku site

Quote:
XY-Wing 1,6,9 in r58c9,r9c8 and -9 in r9c9
or
W-Wing 1,6 in r5c3,r8c9 SL with number1 in r3c39 and -6 in r5c9


Ciao Gianni
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TomC



Joined: 30 Oct 2020
Posts: 226
Location: Wales

PostPosted: Tue Jan 18, 2022 10:29 am    Post subject: Reply with quote

Pincers on <1> in r2c8 and r8c9 leads to -1 in r3c9 and r9c8
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Mogulmeister



Joined: 03 May 2007
Posts: 1136

PostPosted: Tue Jan 18, 2022 1:55 pm    Post subject: Reply with quote

There's an ANP <136> at r4c12

If the ANP is true the 36 pair means r4c7 = 9, r5c9 = 6, r8c9 = 1 and r9c8 <> 1

OR

If the ANP is false then r2c1 = 9, r2c8 = 1 and r9c8 < > 1
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Mogulmeister



Joined: 03 May 2007
Posts: 1136

PostPosted: Tue Jan 18, 2022 7:14 pm    Post subject: Reply with quote

Really nice ALS configuration worth a squint.



Yellow Set {8,9}
Pink Set {1,6,7,8,9}

Restricted common is 8
Common Candidate Eliminated is 9 (red) which is seen by both Yellow and Pink
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