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immpy
Joined: 06 May 2017 Posts: 571
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Posted: Thu Jul 06, 2023 5:09 pm Post subject: VH+ 070623 |
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Hello all, enjoy the puzzle.
Code: |
+-------+-------+-------+
| . 7 . | . . 1 | 9 . 5 |
| . . 8 | . . . | . 1 . |
| 3 1 . | . 7 . | . . 6 |
+-------+-------+-------+
| . 2 . | . 5 . | . . 4 |
| . . . | . . 7 | 2 . . |
| . . 4 | 3 . . | . . . |
+-------+-------+-------+
| . 6 . | 7 . . | . 9 . |
| 8 . 3 | . . 2 | 1 . 7 |
| 2 4 . | . . . | 5 . . |
+-------+-------+-------+
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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 Jul 09, 2023 7:18 pm Post subject: |
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Thanks for the puzzle immp!
After basics:
Code: | +----------------+-----------------+---------------+
| 46 7 26 | 468 3 1 | 9 248 5 |
| 469 5 8 | 2 469 46 | 7 1 3 |
| 3 1 d29 | e489 7 5 | 48 248 6 |
+----------------+-----------------+---------------+
| b1679 2 c169 | g16 5 h68 | i38 j378 4 |
| 156 3 156 | 146 1468 7 | 2 58 9 |
| a57 8 4 | 3 2 9 | 6 5-7 1 |
+----------------+-----------------+---------------+
| 15 6 15 | 7 48 348 | 34 9 2 |
| 8 9 3 | 5 46 2 | 1 46 7 |
| 2 4 7 | f19 19 36 | 5 36 8 |
+----------------+-----------------+---------------+ |
Then I used the chain 7r6c1=(7-9)r4c1=r4c3-r3c3=r3c4-(9=1)r9c4-(1=6)r4c4-(6=8)r4c6-(8=3)r4c7-(38=7)r4c8 => r6c8 <> 7; stte. |
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TomC
Joined: 30 Oct 2020 Posts: 358 Location: Wales
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Posted: Mon Jul 10, 2023 2:36 pm Post subject: |
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Code: |
+----------------+----------------+----------+
| 46 7 26 | 468 3 1 | 9 248 5 |
| 469 5 8 | 2 469 46 | 7 1 3 |
| 3 1 29 | 489 7 5 | 48 248 6 |
+----------------+----------------+----------+
| a1679 2 a169 | c16 5 68 | 38 378 4 |
| x156 3 x156 | a146 a1468 7 | 2 58 9 |
| 57 8 4 | 3 2 9 | 6 57 1 |
+----------------+----------------+----------+
| x15 6 x15 | 7 48 348 | 34 9 2 |
| 8 9 3 | 5 46 2 | 1 46 7 |
| 2 4 7 | b19 19 36 | 5 36 8 |
+----------------+----------------+----------+
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Play this puzzle online at the Daily Sudoku site
I used two steps
First remove <6> from "a" as otherwise this would give a <15> unique rectangle in "x"
This reveals a <19> W wing in r4c3, r9c4 to remove <1> from r4c4 to solve (using <9> in row 3) |
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Clement
Joined: 24 Apr 2006 Posts: 1111 Location: Dar es Salaam Tanzania
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Posted: Fri Jul 14, 2023 8:59 pm Post subject: VH+ 070623 |
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Code: |
+------------------+--------------------+----------------+
| 46 7 26 | 468 3 1 | 9 248 5 |
| 469 5 8 | 2 469 46 | 7 1 3 |
| 3 1 d29 |c489 7 5 | 48 248 6 |
+------------------+--------------------+----------------+
|f1679 2 e169 |b16 5 a68 | 38 378 4 |
| 156 3 156 | 146 j1468 7 | 2 i58 9 |
|g57 8 4 | 3 2 9 | 6 h57 1 |
+------------------+--------------------+----------------+
| 15 6 15 | 7 k48 34-8| 34 9 2 |
| 8 9 3 | 5 46 2 | 1 46 7 |
| 2 4 7 |b19 19 36 | 5 36 8 |
+------------------+--------------------+----------------+
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(8=6)r4c6 - (6=19)r49c4 - (9)r3c4 = r3c3 - r4c3 = (9-7)r4c1 = (7-5)r6c1 = r6c8 - (5=8)r5c8 - r5c5 = (8)r7c5 => - 8r7c6; stte |
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