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immpy
Joined: 06 May 2017
Posts: 571
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 Posted: Thu Dec 21, 2023 7:39 pm Post subject: VH++ 122123 |
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Happy Holidays to all! Enjoy the puzzle.
| Code: |
+-------+-------+-------+
| 7 3 5 | 9 4 8 | 2 6 1 |
| . 2 . | . . . | . 9 . |
| . . . | . . . | . . . |
+-------+-------+-------+
| . . . | 5 . 4 | . . . |
| . 9 1 | 2 . 3 | 6 5 . |
| 5 . . | . . . | . . 2 |
+-------+-------+-------+
| 2 . . | 8 1 9 | . . 6 |
| . . . | 4 3 6 | . . . |
| 6 1 . | 7 . 5 | . 4 3 |
+-------+-------+-------+
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Play this puzzle online at the Daily Sudoku site
cheers...immp |
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dongrave
Joined: 06 Mar 2014
Posts: 568
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| Posted: Sun Dec 24, 2023 4:10 pm Post subject: |
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Thanks for the puzzle again immp!
After basics: | Code: | +------------------+-----------------+------------------+
| 7 3 5 | 9 4 8 | 2 6 1 |
| 148 2 p468 | 136 o567 i17* | 3478 9 n4578 |
| 1489 a68* 4689 | 136 567 2 | 3478 b38 4578 |
+------------------+-----------------+------------------+
| 3 678 2 | 5 6789 4 | 789 1 789 |
| f48 9 1 | 2 g78 3 | 6 5 e4*78 |
| 5 678 q468 | r16 6789 h17 | d34789 c38 2 |
+------------------+-----------------+------------------+
| 2 4 3 | 8 1 9 | 5 7 6 |
| j89 5 7 | 4 3 6 | 1 2 m89 |
| 6 1 k8@9 | 7 2 5 | L89 4 3 |
+------------------+-----------------+------------------+ |
Then I used the following ridiculously long chain (using pencil and paper of course!)
8*r3c2-(8=3)r3c8-r6c8=(3-4)r6c7=4*r5c9-(4=8)r5c1-[(8=7)r5c5-(7=1)r6c6-(1=7*)r2c6 -r8c1]=8@r9c3-r9c7=r8c9-(4*7*8=5)r2c9-(57*=6)r2c5-(68*=4)r2c3-(48@=6)r6c3-(6=1)r6c4 contradiction (i.e. 1r6c46) => r3c2 != 8; stte. |
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glesco
Joined: 12 May 2022
Posts: 36
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| Posted: Mon Dec 25, 2023 11:18 pm Post subject: |
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| I found a finned x-wing that eliminated 8 from r3c12. Basic steps thereafter. Hope I didn't make a mistake! |
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