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VH+ 070125

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immpy

Joined: 06 May 2017
Posts: 574

Posted: Tue Jul 01, 2025 6:36 pm Post subject: VH+ 070125

Happy 4th all. Enjoy the puzzle.

Code:

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

Play this puzzle online at the Daily Sudoku site

cheers...immp

dongrave

Joined: 06 Mar 2014
Posts: 571

Posted: Sat Jul 05, 2025 11:07 pm Post subject:

Thanks for the puzzle immp! After the basics:

Code:

+-----------------+----------------+-----------------+
| 6 1 c24 | 9 2458 7 | 2458 45 3 |
| 79 3 79 | 458 2458 45 | 24568 1 68 |
| 5 d24 8 | 3 6 1 | 7 49 e249 |
+-----------------+----------------+-----------------+
| 8 247 3 | 45 9 245 | 1 6 2457 |
| 1 9 247 | 456 3 2456 | 245 8 2457 |
| 2-4 6 5 | 1 7 8 | 9 3 f24 |
+-----------------+----------------+-----------------+
| 27 27 1 | 4568 458 456 | 3 459 459 |
| a49 8 b469 | 7 45 3 | 456 2 1 |
| 3 5 b46 | 2 1 9 | 468 7 68 |
+-----------------+----------------+-----------------+

Then I used the following chain: (4=9)r8c1 - (9=4|6)r89c3 - (4=2)r1c3 - r3c2 = r3c9 - (2=4)r6c9 => r6c1 != 4; stte.

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