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VH+(+) 010624

 
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immpy



Joined: 06 May 2017
Posts: 571

PostPosted: Sat Jan 06, 2024 5:16 pm    Post subject: VH+(+) 010624 Reply with quote

Hello all, enjoy the puzzle.

Code:

+-------+-------+-------+
| . . 2 | . 3 . | 8 . . |
| . . . | 4 . 7 | . 5 . |
| 5 . . | 2 . 1 | . . 7 |
+-------+-------+-------+
| . . 3 | . 7 . | 6 9 . |
| 7 . . | 9 . 8 | . . 4 |
| . 5 9 | . 2 . | 1 . . |
+-------+-------+-------+
| 1 . . | 8 . 3 | . . 9 |
| . 3 . | 6 . . | . . . |
| . . 5 | 7 1 . | 4 . . |
+-------+-------+-------+

Play this puzzle online at the Daily Sudoku site

cheers...immp
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TomC



Joined: 30 Oct 2020
Posts: 357
Location: Wales

PostPosted: Sun Jan 07, 2024 10:15 am    Post subject: Reply with quote

Remove <5> from r5c7 to solve
Code:

+---------------+-----------+----------------+
| 469  7    2   | 5 3   69  |  8    14   16  |
| 3    1689 168 | 4 689 7   | c29   5    26  |
| 5    4689 468 | 2 689 1   |  39   34   7   |
+---------------+-----------+----------------+
| 248  248  3   | 1 7   45  |  6    9   b25  |
| 7    126  16  | 9 56  8   | a235  23   4   |
| 46   5    9   | 3 2   46  |  1    7    8   |
+---------------+-----------+----------------+
| 1    246  467 | 8 45  3   | x257  26   9   |
| 2489 3    478 | 6 459 259 | x257  128  125 |
| 2689 2689 5   | 7 1   29  |  4    268  3   |
+---------------+-----------+----------------+

Play this puzzle online at the Daily Sudoku site
Quote:
If a=5, b=2, c=2 leads to two <7>'s in x
or to look at it slightly differently
If a=5, b=2, x=<27> leads to no <2> in box 3
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dongrave



Joined: 06 Mar 2014
Posts: 567

PostPosted: Sun Jan 07, 2024 12:55 pm    Post subject: Reply with quote

After basics:
Code:
+---------------+--------------+---------------+
| 469  7    2   | 5   3   c69  | 8   e14  d16  |
| 3    1689 168 | 4  b689  7   | 29   5    26  |
| 5    4689 468 | 2  b689  1   | 39  f34   7   |
+---------------+--------------+---------------+
| 248  248  3   | 1   7    4-5 | 6    9   h25  |
| 7    126  16  | 9  a56   8   | 235 g23   4   |
| 46   5    9   | 3   2    46  | 1    7    8   |
+---------------+--------------+---------------+
| 1    246  467 | 8   45   3   | 257  26   9   |
| 2489 3    478 | 6   459  259 | 257  128  125 |
| 2689 2689 5   | 7   1    29  | 4    268  3   |
+---------------+--------------+---------------+

(5=6)r5c5-r23c5=r1c6-(6=1)r1c9-(1=4)r1c8-(4=3)r3c8-(3=2)r5c8-(2=5)r4c9 => r4c6 != 5; stte.
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