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VH+ 102522

 
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immpy



Joined: 06 May 2017
Posts: 571

PostPosted: Tue Oct 25, 2022 9:40 pm    Post subject: VH+ 102522 Reply with quote

Hello all, enjoy the puzzle.

Code:

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

Play this puzzle online at the Daily Sudoku site

cheers...immp
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dongrave



Joined: 06 Mar 2014
Posts: 568

PostPosted: Wed Oct 26, 2022 2:01 pm    Post subject: Reply with quote

After basics:
Code:
+---------------+-----------------+-----------------+
| 3    6    1   |  4    78    9   | 2    78   5     |
| 49   489  2   |  1678 5     168 | 3    478  4678  |
| 7    5   a48  | b68   23    23  | 468  9    1     |
+---------------+-----------------+-----------------+
| 16   17   369 |  2    34789 5   | 48   3478 3478  |
| 5    2    39  |  789  34789 38  | 1    6    3478  |
| 8   d47   3-4 | c67    9    36  | 5    2    9     |
+---------------+-----------------+-----------------+
| 1246 148  468 |  5    289   7   | 4689 1348 23468 |
| 246  3    7   |  189  289   128 | 4689 5    2468  |
| 129  189  5   |  3    6     4   | 7    18   28    |
+---------------+-----------------+-----------------+

Then I used the XY-Chain (4=8)r3c3-(8=6)r3c4-(6=7)r6c4-(7=4)r6c2 => r6c3 <> 4; stte.
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