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hughwill
Joined: 05 Apr 2010
Posts: 424
Location: Birmingham UK
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 Posted: Fri Feb 12, 2016 10:45 am Post subject: Feb 12 VH |
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| Code: |
+--------------+---------------+---------+
| 5 126 4 | 126 8 12 | 9 7 3 |
| 267 3 126 | 12679 269 4 | 26 5 8 |
| 8 267 9 | 5 236 237 | 26 4 1 |
+--------------+---------------+---------+
| 469 146 16 | 3 7 19 | 8 2 5 |
| 2379 27 5 | 4 29 8 | 1 39 6 |
| 239 8 123 | 129 5 6 | 4 39 7 |
+--------------+---------------+---------+
| 1 9 7 | 26 236 23 | 5 8 4 |
| 234 24 23 | 8 1 5 | 7 6 9 |
| 6 5 8 | 79 4 79 | 3 1 2 |
+--------------+---------------+---------+
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Play this puzzle online at the Daily Sudoku site
I can't do it in less than 3:
The X-Wing on 1 in rows 2 and 6 and the 19-2 XY wing pivot r4c6
appear to be able to be done in either order. They are needed to open
the | Quote: | | 69-2 XY-wing pivot r1c4 |
which finally settles its hash. Strangely, the cell solved by the X wing (r4c3)
is irrelevant to breaking the puzzle....
Hugh
(edited for mistake in X wing row)
Last edited by hughwill on Fri Feb 12, 2016 1:29 pm; edited 1 time in total |
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yeoks
Joined: 16 May 2010
Posts: 33
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| Posted: Fri Feb 12, 2016 12:10 pm Post subject: |
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My after basics
| Code: |
+---------------+---------------+---------+
| 5 126 4 | 126 8 12 | 9 7 3 |
| 267 3 1267 | 12679 269 4 | 26 5 8 |
| 8 267 9 | 5 236 237 | 26 4 1 |
+---------------+---------------+---------+
| 469 146 16 | 3 7 19 | 8 2 5 |
| 2379 27 5 | 4 29 8 | 1 39 6 |
| 239 8 123 | 129 5 6 | 4 39 7 |
+---------------+---------------+---------+
| 1 9 67 | 267 236 237 | 5 8 4 |
| 234 24 23 | 8 1 5 | 7 6 9 |
| 67 5 8 | 679 4 79 | 3 1 2 |
+---------------+---------------+---------+
|
Play this puzzle online at the Daily Sudoku site
The X-Wing on 1 in c26 does it in a step. |
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hughwill
Joined: 05 Apr 2010
Posts: 424
Location: Birmingham UK
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| Posted: Fri Feb 12, 2016 1:31 pm Post subject: |
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| yeoks wrote: |
The X-Wing on 1 in c26 does it in a step. |
I still can't do it without the other wings......? |
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yeoks
Joined: 16 May 2010
Posts: 33
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| Posted: Fri Feb 12, 2016 3:21 pm Post subject: |
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Hugh,
First, either X-Wings on 1 (whether r26 or c26) removes 1 from both r1c4 and r4c3.
After some tidying up, you get a pair of 26 in c4, then another pair of 19 in box 5. I hope it helps.
Regards,
Yeoks |
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hughwill
Joined: 05 Apr 2010
Posts: 424
Location: Birmingham UK
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| Posted: Sat Feb 13, 2016 11:08 am Post subject: |
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| yeoks wrote: | Hugh,
First, either X-Wings on 1 (whether r26 or c26) removes 1 from both r1c4 and r4c3.
After some tidying up, you get a pair of 26 in c4, then another pair of 19 in box 5. I hope it helps.
Regards,
Yeoks |
You are entirely correct- I was lax on my eliminations - not something
you want to do too often! |
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