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TerenceF
Joined: 21 Dec 2007 Posts: 26 Location: Takapuna, NZ
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Posted: Fri Nov 08, 2013 10:05 am Post subject: Nov 8 VH |
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Code: |
+---------------+---------------+------------+
| 4 256 3 | 7 258 58 | 1 9 268 |
| 289 29 7 | 6 2389 138 | 4 5 238 |
| 2589 2569 1 | 23 23589 4 | 38 368 7 |
+---------------+---------------+------------+
| 29 7 24 | 8 235 35 | 6 34 1 |
| 25 8 245 | 234 1 6 | 23 7 9 |
| 3 1 6 | 24 7 9 | 28 48 5 |
+---------------+---------------+------------+
| 6 25 25 | 9 4 38 | 7 1 38 |
| 7 4 9 | 1 38 2 | 5 368 368 |
| 1 3 8 | 5 6 7 | 9 2 4 |
+---------------+---------------+------------+
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XY wing 238 pivot in r3c7 sets r6c4<>2 |
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hughwill
Joined: 05 Apr 2010 Posts: 422 Location: Birmingham UK
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Posted: Fri Nov 08, 2013 12:13 pm Post subject: Nov 8 VH |
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Terence said:
Quote: | XY wing 238 pivot in r3c7 sets r6c4<>2 |
After basics:
Code: |
+--------------+--------------+------------+
| 4 256 3 | 7 258 58 | 1 9 268 |
| 28 29 7 | 6 2389 1 | 4 5 238 |
| 258 2569 1 | 23 23589 4 | 38 368 7 |
+--------------+--------------+------------+
| 9 7 24 | 8 235 35 | 6 34 1 |
| 25 8 245 | 234 1 6 | 23 7 9 |
| 3 1 6 | 24 7 9 | 28 48 5 |
+--------------+--------------+------------+
| 6 25 25 | 9 4 38 | 7 1 38 |
| 7 4 9 | 1 38 2 | 5 368 368 |
| 1 3 8 | 5 6 7 | 9 2 4 |
+--------------+--------------+------------+
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Play this puzzle online at the Daily Sudoku site
.....and a 234 XY-Wing pivot r4c8 also sorts it out. |
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kuskey
Joined: 10 Dec 2008 Posts: 141 Location: Pembroke, NH
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Posted: Fri Nov 08, 2013 10:16 pm Post subject: Nov 8 VH |
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Marty, I was able to solve it as a single stepper using the 234 xy-wing on Hugh's and my after-basics code. However, the cleanup after the xy wing was prolonged and a grinder right to the end and included some steps that could easily be overlooked. |
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Marty R.
Joined: 12 Feb 2006 Posts: 5770 Location: Rochester, NY, USA
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Posted: Sat Nov 09, 2013 12:20 am Post subject: |
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Oops, thanks, I see where I screwed up. ![Embarassed](images/smiles/icon_redface.gif) |
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