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Oct 27 VH

 
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ZeroAssoluto



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

PostPosted: Tue Oct 27, 2020 9:24 am    Post subject: Oct 27 VH Reply with quote

Hi everyone,

first step

Code:

+---------------+----------+--------------+
| 7   5    26   | 4  39 8  | 1269 369 123 |
| 9   8    1    | 6  37 2  | 4    357 35  |
| 46  246  3    | 5  79 1  | 2679 679 8   |
+---------------+----------+--------------+
| 356 9    568  | 2  4  36 | 58   1   7   |
| 2   34   45   | 8  1  7  | 59   39  6   |
| 1   7    68   | 9  5  36 | 28   4   23  |
+---------------+----------+--------------+
| 8   126  2567 | 17 26 9  | 3    567 4   |
| 56  126  9    | 3  26 4  | 1567 8   15  |
| 346 1346 467  | 17 8  5  | 167  2   9   |
+---------------+----------+--------------+

Play this puzzle online at the Daily Sudoku site

W-Wing 5,6 in r7c8,r8c1 SL with number 6 in r78c5 and -5 in r7c3,r8c9

second step

Code:

+------------+----------+-----------+
| 7  5   26  | 4  39 8  | 1  369 23 |
| 9  8   1   | 6  37 2  | 4  37  5  |
| 46 246 3   | 5  79 1  | 29 679 8  |
+------------+----------+-----------+
| 36 9   58  | 2  4  36 | 58 1   7  |
| 2  34  45  | 8  1  7  | 59 39  6  |
| 1  7   68  | 9  5  36 | 28 4   23 |
+------------+----------+-----------+
| 8  126 267 | 17 26 9  | 3  5   4  |
| 5  26  9   | 3  26 4  | 7  8   1  |
| 34 134 47  | 17 8  5  | 6  2   9  |
+------------+----------+-----------+

Play this puzzle online at the Daily Sudoku site

W-Wing 3,4 in r5c2,r9c1 SL with number 4 in r3c12 and -3 in r4c1,r9c2

Ciao Gianni
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dongrave



Joined: 06 Mar 2014
Posts: 563

PostPosted: Tue Oct 27, 2020 11:32 am    Post subject: Reply with quote

I used 2 VH moves. After basics:
Code:
+---------------+----------+--------------+
| 7   5    26   | 4  39 8  | 1269 369 123 |
| 9   8    1    | 6  37 2  | 4    357 35  |
| 46  246  3    | 5  79 1  | 269  679 8   |
+---------------+----------+--------------+
| 356 9    568  | 2  4  36 | 58   1   7   |
| 2   34   45   | 8  1  7  | 59   39  6   |
| 1   7    68   | 9  5  36 | 28   4   23  |
+---------------+----------+--------------+
| 8   126  2567 | 17 26 9  | 3    56  4   |
| 56  126  9    | 3  26 4  | 7    8   15  |
| 346 1346 467  | 17 8  5  | 16   2   9   |
+---------------+----------+--------------+

Step 1: 15-6 XY Wing with pivot at r8c9 (-6r9c123)

Code:
+---------------+----------+--------------+
| 7   5    26   | 4  39 8  | 1    369 23  |
| 9   8    1    | 6  37 2  | 4    37  5   |
| 46  246  3    | 5  79 1  | 29   679 8   |
+---------------+----------+--------------+
| 36  9    58   | 2  4  36 | 58   1   7   |
| 2   34   45   | 8  1  7  | 59   39  6   |
| 1   7    68   | 9  5  36 | 28   4   23  |
+---------------+----------+--------------+
| 8   126  267  | 17 26 9  | 3    5   4   |
| 5   26   9    | 3  26 4  | 7    8   1   |
| 34  134  47   | 17 8  5  | 6    2   9   |
+---------------+----------+--------------+

Step 2: 36-4 XY Wing with pivot at r4c1 (-4r3c2).
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Earl



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

PostPosted: Tue Oct 27, 2020 8:40 pm    Post subject: Oct 27 VH Reply with quote

Second move can also be:
26UR (R78,C25), R7C2=1

Early Earl
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immpy



Joined: 06 May 2017
Posts: 570

PostPosted: Sat Oct 31, 2020 4:02 pm    Post subject: Reply with quote

Nice two-stepper for a change.
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