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Feb 09 VH

 
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Earl



Joined: 30 May 2007
Posts: 677
Location: Victoria, KS

PostPosted: Wed Feb 09, 2022 12:33 pm    Post subject: Feb 09 VH Reply with quote

489xywing@R4C1, -9R2C3

Early Earl
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TomC



Joined: 30 Oct 2020
Posts: 349
Location: Wales

PostPosted: Wed Feb 09, 2022 1:21 pm    Post subject: Reply with quote

Code:

+------------+----------+---------+
| 1  8   3   | 47 6  49 | 2 5  79 |
| 6  5   79  | 2  79 8  | 3 4  1  |
| 49 479 2   | 3  1  5  | 8 6  79 |
+------------+----------+---------+
| 48 6   5   | 47 37 1  | 9 38 2  |
| 7  24  89  | 5  39 24 | 1 38 6  |
| 3  29  1   | 6  8  29 | 4 7  5  |
+------------+----------+---------+
| 2  1   6   | 8  4  7  | 5 9  3  |
| 5  3   4   | 9  2  6  | 7 1  8  |
| 89 79  789 | 1  5  3  | 6 2  4  |
+------------+----------+---------+

Play online at the Daily Sudoku site

Another way of solving this:

If r4c5=3
then r5c5=9
also r4c8=8, r4c1=4, r3c1=9
this leaves no room for a <9> in r2 so r4c5 must be <7>
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ZeroAssoluto



Joined: 05 Feb 2017
Posts: 868
Location: Rimini, Italy

PostPosted: Wed Feb 09, 2022 2:19 pm    Post subject: Reply with quote

Hi everyone,

W-Wing
7,9 in r2c3,r9c2 SL with number 9 in r39c1 and -7 in r3c2,r9c3
or
7,9 in r3c9,r9c2 SL with number 9 in r39c1 and -7 in r3c2

Ciao Gianni
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Mogulmeister



Joined: 03 May 2007
Posts: 1151

PostPosted: Wed Feb 09, 2022 9:16 pm    Post subject: Reply with quote

Pincers for 9 at r6c2 and r9c1 so r9c2 < > 9

(9=2)r6c2-(2=4)r5c2-(4=8)r4c1-(8=9)r9c1

I see this as a simple xy chain but you could see it as a W-wing with an SL on 4.
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