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Clement
Joined: 24 Apr 2006 Posts: 1110 Location: Dar es Salaam Tanzania
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Posted: Mon Feb 24, 2014 10:13 pm Post subject: Feb 25 VH |
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Code: |
+-----------+------------+-----------+
| 129 3 19 | *24 6 5 | 7 8 49 |
| 68 68 4 | 9 3 7 | 2 1 5 |
| 29 7 5 | 8 124 1-4 | 3 46 469 |
+-----------+------------+-----------+
| 4 2 8 | 1 9 6 | 5 7 3 |
| 7 1 36 | #23 5 8 | 4 9 26 |
| 5 9 36 | 7 24 *34 | 1 26 8 |
+-----------+------------+-----------+
| 3 48 7 | 6 148 2 | 9 5 14 |
| 18 5 2 | 34 18 9 | 6 34 7 |
| 169 46 19 | 5 7 134 | 8 234 124 |
+-----------+------------+-----------+
| XY-Wing 23-4 pivoted in r5c4; r3c6<>4 opens another
XY-Wing 46-2 pivoted in r3c8; r6c5<>2; stte. |
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hughwill
Joined: 05 Apr 2010 Posts: 422 Location: Birmingham UK
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Posted: Tue Feb 25, 2014 10:05 am Post subject: Feb 25 VH |
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Code: |
+-----------+------------+-----------+
| 129 3 19 | 24 6 5 | 7 8 49 |
| 68 68 4 | 9 3 7 | 2 1 5 |
| 29 7 5 | 8 124 14 | 3 46 469 |
+-----------+------------+-----------+
| 4 2 8 | 1 9 6 | 5 7 3 |
| 7 1 36 | 23 5 8 | 4 9 26 |
| 5 9 36 | 7 24 34 | 1 26 8 |
+-----------+------------+-----------+
| 3 48 7 | 6 148 2 | 9 5 14 |
| 18 5 2 | 34 18 9 | 6 34 7 |
| 169 46 19 | 5 7 134 | 8 234 124 |
+-----------+------------+-----------+
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Play this puzzle online at the Daily Sudoku site
Another 234 XY-Wing pivot r5c4 removes 4 from r7c5 leading to Clement's
second XY wing. A lot of red herrings in this one- I was sure there was a
one stepper somewhere..... |
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Marty R.
Joined: 12 Feb 2006 Posts: 5770 Location: Rochester, NY, USA
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Posted: Tue Feb 25, 2014 2:57 pm Post subject: |
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I also needed two XY-Wings. |
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JC Van Hay
Joined: 13 Jun 2010 Posts: 494 Location: Charleroi, Belgium
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Posted: Tue Feb 25, 2014 5:21 pm Post subject: |
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Code: | +-------------+----------------+---------------+
| 129 3 19 | 2(4) 6 5 | 7 8 9(4) |
| 68 68 4 | 9 3 7 | 2 1 5 |
| 29 7 5 | 8 124 14 | 3 6-4 469 |
+-------------+----------------+---------------+
| 4 2 8 | 1 9 6 | 5 7 3 |
| 7 1 36 | 23 5 8 | 4 9 26 |
| 5 9 36 | 7 24 34 | 1 26 8 |
+-------------+----------------+---------------+
| 3 48 7 | 6 148 2 | 9 5 1-4 |
| 18 5 2 | 3(4) 18 9 | 6 3(4) 7 |
| 169 46 19 | 5 7 134 | 8 234 12-4 |
+-------------+----------------+---------------+
| Skyscraper(4r1c49,4r8c48)-4r3c8,r79c9; ste |
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Clement
Joined: 24 Apr 2006 Posts: 1110 Location: Dar es Salaam Tanzania
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Posted: Tue Feb 25, 2014 8:50 pm Post subject: Feb 25 VH |
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Code: |
+-----------+------------+-----------+
| 129 3 19 | a24 6 5 | 7 8 9-4 |
| 68 68 4 | 9 3 7 | 2 1 5 |
| 29 7 5 | 8 124 14 | 3 f46 469 |
+-----------+------------+-----------+
| 4 2 8 | 1 9 6 | 5 7 3 |
| 7 1 36 | b23 5 8 | 4 9 26 |
| 5 9 36 | 7 d24 c34 | 1 e26 8 |
+-----------+------------+-----------+
| 3 48 7 | 6 148 2 | 9 5 14 |
| 18 5 2 | 34 18 9 | 6 34 7 |
| 169 46 19 | 5 7 134 | 8 234 124 |
+-----------+------------+-----------+
| Another single stepper is
XY Chain: (4=2)r1c4-(2=3)r5c4-(3=4)r6c6-(4=2)r6c5-(2=6)r6c8-(6=4)r3c8; r1c9<>4. |
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