| View previous topic :: View next topic |
| Author |
Message |
RobertRattley
Joined: 24 Jun 2007
Posts: 118
Location: Australia
|
 Posted: Tue Jan 14, 2014 3:01 am Post subject: Jan 14 VH |
 |
|
x wing 7
xy wing 159
If I post too early it might look as if I've cheated the computer's midnight. But I'm near the early edge of the International Date Line and all I have to do is solve a puzzle in the wee hours. |
|
| Back to top |
|
 |
Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
|
| Posted: Tue Jan 14, 2014 6:01 am Post subject: |
|
|
| My X-Wing was on 9 in c58 followed by the same XY-Wing. |
|
| Back to top |
|
|
hughwill
Joined: 05 Apr 2010
Posts: 424
Location: Birmingham UK
|
| Posted: Tue Jan 14, 2014 9:34 am Post subject: Jan 14VH |
|
|
After basics: | Code: |
+---------------+--------------+-------------+
| 4579 59 4579 | 2 6 49 | 1 3 8 |
| 149 19 3 | 49 8 5 | 6 2 7 |
| 8 2 6 | 7 1 3 | 59 4 59 |
+---------------+--------------+-------------+
| 459 8 459 | 59 3 6 | 7 1 2 |
| 1579 6 1579 | 8 79 2 | 34 59 34 |
| 579 3 2 | 159 4 179 | 8 6 59 |
+---------------+--------------+-------------+
| 2 4 19 | 139 5 8 | 39 7 6 |
| 3 159 8 | 6 79 1479 | 2 59 14 |
| 6 7 159 | 1349 2 149 | 3459 8 134 |
+---------------+--------------+-------------+
|
Play this puzzle online at the Daily Sudoku site
Same solution- very satisfying today! |
|
| Back to top |
|
|
RobertRattley
Joined: 24 Jun 2007
Posts: 118
Location: Australia
|
| Posted: Tue Jan 14, 2014 3:07 pm Post subject: Re: Jan 14 VH |
|
|
| RobertRattley wrote: | x wing 7
xy wing 159... |
Oops! Typo. I meant x wing 9. |
|
| Back to top |
|
|
George Woods
Joined: 28 Mar 2006
Posts: 304
Location: Dorset UK
|
| Posted: Tue Jan 14, 2014 4:04 pm Post subject: Can't find the 159 wing |
|
|
Forgive me- I get the same result and the x wing on 9 as quoted but can't find the 15 to make up a 159 xy wing. There is a kind of x wing 579 with pivot at r5c5 that leads to a 5 at r4c4 but for me no obvious continuation
HELP |
|
| Back to top |
|
|
Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
|
| Posted: Tue Jan 14, 2014 6:12 pm Post subject: Re: Can't find the 159 wing |
|
|
| George Woods wrote: | Forgive me- I get the same result and the x wing on 9 as quoted but can't find the 15 to make up a 159 xy wing. There is a kind of x wing 579 with pivot at r5c5 that leads to a 5 at r4c4 but for me no obvious continuation
HELP |
The X-Wing takes out a 9 from r8c2, which then becomes the XY-Wing pivot. |
|
| Back to top |
|
|
George Woods
Joined: 28 Mar 2006
Posts: 304
Location: Dorset UK
|
| Posted: Wed Jan 15, 2014 1:05 pm Post subject: a kind of XY wing |
|
|
Thanks Marty -Just after posting my problem I realised I had serviced only half of the X wing. and of course correcting that gives a direct solution.
BUT is the kind of XY that Idescribed andlead to the 5 at r4c4 classified as an XY wing and if not how is it described? |
|
| Back to top |
|
|
Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
|
| Posted: Wed Jan 15, 2014 4:15 pm Post subject: |
|
|
George,
I'm sorry, but I just don't know what combination of cells constitute what you're asking about. This is the grid after the X-Wing is executed.
| Code: |
+--------------+-------------+-------------+
| 4579 59 4579 | 2 6 49 | 1 3 8 |
| 149 19 3 | 49 8 5 | 6 2 7 |
| 8 2 6 | 7 1 3 | 59 4 59 |
+--------------+-------------+-------------+
| 459 8 459 | 59 3 6 | 7 1 2 |
| 157 6 157 | 8 79 2 | 34 59 34 |
| 579 3 2 | 159 4 179 | 8 6 59 |
+--------------+-------------+-------------+
| 2 4 19 | 139 5 8 | 39 7 6 |
| 3 15 8 | 6 79 147 | 2 59 14 |
| 6 7 159 | 1349 2 149 | 3459 8 134 |
+--------------+-------------+-------------+
|
Play this puzzle online at the Daily Sudoku site |
|
| Back to top |
|
|
George Woods
Joined: 28 Mar 2006
Posts: 304
Location: Dorset UK
|
| Posted: Wed Jan 15, 2014 7:23 pm Post subject: almost an XY |
|
|
XY (nearly 597)
Take the pivot at r5c5 If 7 the pair of 15s in Block 4 denaies 5s to top row in that block OR if 9 then same row of block 4 is denied 5 ergo r4c4 is 5 |
|
| Back to top |
|
|
Marty R.
Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
|
| Posted: Wed Jan 15, 2014 8:14 pm Post subject: Re: almost an XY |
|
|
| George Woods wrote: | XY (nearly 597)
Take the pivot at r5c5 If 7 the pair of 15s in Block 4 denaies 5s to top row in that block OR if 9 then same row of block 4 is denied 5 ergo r4c4 is 5 |
| Code: | +--------------+-------------+-------------+
| 4579 59 4579 | 2 6 49 | 1 3 8 |
| 149 19 3 | 49 8 5 | 6 2 7 |
| 8 2 6 | 7 1 3 | 59 4 59 |
+--------------+-------------+-------------+
| 459 8 459 | 59 3 6 | 7 1 2 |
| 157 6 157 | 8 79 2 | 34 59 34 |
| 579 3 2 | 159 4 179 | 8 6 59 |
+--------------+-------------+-------------+
| 2 4 19 | 139 5 8 | 39 7 6 |
| 3 15 8 | 6 79 147 | 2 59 14 |
| 6 7 159 | 1349 2 149 | 3459 8 134 |
+--------------+-------------+-------------+ |
George,
I am hardly an expert on such things, but that might be an XY-Wing with r5c13 being a pseudo cell, i.e., the two cells act as one 57 pincer. Then you would treat it as an XY-Wing=>r4c13<>5 rather than having to look at each value of r5c5.
If by any chance Keith sees this, he'll be able to give the final word. |
|
| Back to top |
|
|
|
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
