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Clement
Joined: 24 Apr 2006
Posts: 1113
Location: Dar es Salaam Tanzania
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 Posted: Sun Feb 26, 2012 10:38 pm Post subject: Feb 27 VH |
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| XYZ-Wing 369 hinged in r7c9; r9c9<>6 solves it. |
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hughwill
Joined: 05 Apr 2010
Posts: 424
Location: Birmingham UK
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| Posted: Mon Feb 27, 2012 1:45 pm Post subject: Feb 27 VH |
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| Code: |
+----------+--------+-----------+
| 5 8 69 | 2 3 4 | 1 7 69 |
| 4 1 7 | 6 8 9 | 3 2 5 |
| 2 69 3 | 7 1 5 | 49 46 8 |
+----------+--------+-----------+
| 7 5 8 | 34 9 1 | 6 34 2 |
| 3 2 4 | 5 6 8 | 7 9 1 |
| 69 69 1 | 34 7 2 | 8 5 34 |
+----------+--------+-----------+
| 1 4 69 | 8 5 7 | 2 36 369 |
| 8 3 2 | 9 4 6 | 5 1 7 |
| 69 7 5 | 1 2 3 | 49 8 469 |
+----------+--------+-----------+
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Play this puzzle online at the Daily Sudoku site
Or, if you prefer, the nearby XYZ 469 does the same trick.... |
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ronk
Joined: 07 May 2006
Posts: 398
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| Posted: Mon Feb 27, 2012 3:30 pm Post subject: Re: Feb 27 VH |
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| hughwill wrote: | | Code: |
+----------+--------+-----------+
| 5 8 69 | 2 3 4 | 1 7 69 |
| 4 1 7 | 6 8 9 | 3 2 5 |
| 2 69 3 | 7 1 5 | 49 46 8 |
+----------+--------+-----------+
| 7 5 8 | 34 9 1 | 6 34 2 |
| 3 2 4 | 5 6 8 | 7 9 1 |
| 69 69 1 | 34 7 2 | 8 5 34 |
+----------+--------+-----------+
| 1 4 69 | 8 5 7 | 2 36 39+6|
| 8 3 2 | 9 4 6 | 5 1 7 |
| 69 7 5 | 1 2 3 | 49 8 46+9|
+----------+--------+-----------+
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If BUGs are permitted for VH puzzles, there is a BUG+2. At least one of r7c9=6 and r9c9=9 must be true, which implies r7c9<>9.
[edit: correct quote]
Last edited by ronk on Mon Feb 27, 2012 5:05 pm; edited 1 time in total |
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Clement
Joined: 24 Apr 2006
Posts: 1113
Location: Dar es Salaam Tanzania
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| Posted: Mon Feb 27, 2012 4:12 pm Post subject: Feb 27 VH |
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| Also solved by the remote pairs on 96 which eliminate 69 in r9c9. |
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