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VH++ 021422

 
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immpy



Joined: 06 May 2017
Posts: 570

PostPosted: Mon Feb 14, 2022 6:20 pm    Post subject: VH++ 021422 Reply with quote

Hello all, enjoy the puzzle. Happy Valentine's Day!

Code:

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

Play this puzzle online at the Daily Sudoku site

cheers...immp
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Clement



Joined: 24 Apr 2006
Posts: 1110
Location: Dar es Salaam Tanzania

PostPosted: Mon Feb 14, 2022 11:31 pm    Post subject: VH + + 021422 Reply with quote

Code:

+----------------------+--------------------+-----------------+
| 14579   49     15679 | 148    167   1689  | 3     2     189 |
| 179     8      12679 | 12     3     5     | 67    4     19  |
| 13479   2349   12679 | 1248   167   12689 | 67    89    5   |
+----------------------+--------------------+-----------------+
| 145     24     125   | 6      8     123   | 9     3-7  a47  |
|b48      6      3     | 9      5     7     | 2     1    a48  |
|c189     7     d129   | 123    4     123   | 5     38    6   |
+----------------------+--------------------+-----------------+
| 2       5      8     | 7      9     4     | 1     6     3   |
| 6       1     e79    | 38     2     38    | 4     5    f79  |
| 379     39     4     | 5      16    16    | 8    g79    2   |
+----------------------+--------------------+-----------------+

(7=48)r45c9 - (8)r5c1 = (8-9)r6c1 = r6c3 - r8c3 = r8c9 - (9=7)r9c8 => - 7r4c8; btte
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Mogulmeister



Joined: 03 May 2007
Posts: 1151

PostPosted: Tue Feb 15, 2022 4:20 pm    Post subject: Reply with quote

Not as elegant:

Code:
Remove                                     Put back
||                                           ||
\/                                           \/
(9)r3c8=r9c8-r8c9=r8c3-r6c3=(9-8)r6c1=r6c8-(8=9)r3c8 

So r3c8 = 9
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Clement



Joined: 24 Apr 2006
Posts: 1110
Location: Dar es Salaam Tanzania

PostPosted: Tue Feb 15, 2022 6:54 pm    Post subject: Reply with quote

Mogulmeister wrote:
Not as elegant:

Code:
Remove                                     Put back
||                                           ||
\/                                           \/
(9)r3c8=r9c8-r8c9=r8c3-r6c3=(9-8)r6c1=r6c8-(8=9)r3c8 

So r3c8 = 9
We said that r3c8 is not 9. The chain proves us wrong! It is 9. It is elegant, why not.
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Clement



Joined: 24 Apr 2006
Posts: 1110
Location: Dar es Salaam Tanzania

PostPosted: Tue Feb 15, 2022 6:56 pm    Post subject: Reply with quote

Mogulmeister wrote:
Not as elegant:

Code:
Remove                                     Put back
||                                           ||
\/                                           \/
(9)r3c8=r9c8-r8c9=r8c3-r6c3=(9-8)r6c1=r6c8-(8=9)r3c8 

So r3c8 = 9
We said that r3c8 is not 9. The chain proves us wrong! It is 9. It is elegant, why not.
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Mogulmeister



Joined: 03 May 2007
Posts: 1151

PostPosted: Wed Feb 16, 2022 6:42 am    Post subject: Reply with quote

I guess (in my mind at least) that it is down to aesthetics, Clement. My chain is a contradiction loop, has more steps and it ends where it started.

I found your chain and its conclusion to be "less agricultural". Very Happy
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Clement



Joined: 24 Apr 2006
Posts: 1110
Location: Dar es Salaam Tanzania

PostPosted: Wed Feb 16, 2022 4:20 pm    Post subject: Reply with quote

I found your chain and its conclusion to be "less agricultural". Very Happy[/quote]O.K by a difference of one acre.
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Mogulmeister



Joined: 03 May 2007
Posts: 1151

PostPosted: Wed Feb 16, 2022 4:57 pm    Post subject: Reply with quote

Very Happy
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