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arkietech
Joined: 31 Jul 2008 Posts: 1834 Location: Northwest Arkansas USA
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Posted: Wed Aug 29, 2012 5:37 am Post subject: Vanhegan fiendish August 29, 2012 |
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Code: |
*-----------*
|...|..9|75.|
|...|1..|..4|
|569|...|3..|
|---+---+---|
|...|8..|.3.|
|..3|5.1|2..|
|.5.|..4|...|
|---+---+---|
|..6|...|147|
|9..|..3|...|
|.42|7..|...|
*-----------*
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Marty R.
Joined: 12 Feb 2006 Posts: 5770 Location: Rochester, NY, USA
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Posted: Wed Aug 29, 2012 5:05 pm Post subject: |
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Code: |
+-------------+--------------+--------------+
| 238 1 4 | 36 368 9 | 7 5 26 |
| 2378 238 78 | 1 3568 568 | 9 26 4 |
| 5 6 9 | 2 4 7 | 3 18 18 |
+-------------+--------------+--------------+
| 267 29 1 | 8 2679 26 | 4 3 5 |
| 4 89 3 | 5 679 1 | 2 678 689 |
| 2678 5 78 | 36 23679 4 | 68 1678 1689 |
+-------------+--------------+--------------+
| 38 38 6 | 9 25 25 | 1 4 7 |
| 9 7 5 | 4 1 3 | 68 268 268 |
| 1 4 2 | 7 68 68 | 5 9 3 |
+-------------+--------------+--------------+
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Play this puzzle online at the Daily Sudoku site
Three moves.
XYZ-Wing (689), pivot r5c9; r5c8<>8
XY-Wing (687), pivot r6c7; r6c8<>7
XY-Wing (269), pivot r4c6; r5c2<>9
Once I saw this pattern unfold, I did not check rows and columns for X-Wings, Skyscrapers, etc. There are numerous rectangle possibilities, but none looked like they would get me very far. |
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tlanglet
Joined: 17 Oct 2007 Posts: 2468 Location: Northern California Foothills
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Posted: Wed Aug 29, 2012 7:10 pm Post subject: |
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Like Marty, I also found numerous steps but none was a heavy hammer. So, I went to the next level of tools.......
ANP(2=38)r27c2-(8=9)r5c2-9r5c5*9=(9-1)r6c9=(1-7)r6c8=7r5c8-(79*=6)r5c5-(6=2)r4c6; -2r4c2
Ted |
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arkietech
Joined: 31 Jul 2008 Posts: 1834 Location: Northwest Arkansas USA
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Posted: Wed Aug 29, 2012 7:40 pm Post subject: |
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Thought I would try out the "Purple Cow Wing"
Code: |
*--------------------------------------------------------------------*
| 238 1 4 | 36 368 9 | 7 5 26 |
| 2378 238 78 | 1 3568 568 | 9 26 4 |
| 5 6 9 | 2 4 7 | 3 18 18 |
|----------------------+----------------------+----------------------|
|d26-7 29 1 | 8 2679 26 | 4 3 5 |
| 4 89 3 | 5 679 1 | 2 678 689 |
|c2678 5 a78 | 36 23679 4 |b68 1678 1689 |
|----------------------+----------------------+----------------------|
| 38 38 6 | 9 25 25 | 1 4 7 |
| 9 7 5 | 4 1 3 | 68 268 268 |
| 1 4 2 | 7 68 68 | 5 9 3 |
*--------------------------------------------------------------------*
Hybrid Wing
(7=8)r6c3-(8=6)r6c7-r6c1=6r4c1 => -7r4c1; stte
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tlanglet
Joined: 17 Oct 2007 Posts: 2468 Location: Northern California Foothills
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Posted: Wed Aug 29, 2012 8:42 pm Post subject: |
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arkietech wrote: | Thought I would try out the "Purple Cow Wing"
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I am Green with envy
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Luke451
Joined: 20 Apr 2008 Posts: 310 Location: Southern Northern California
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Posted: Wed Aug 29, 2012 10:57 pm Post subject: |
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