dailysudoku.com Forum Index dailysudoku.com
Discussion of Daily Sudoku puzzles
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Jan 26 VH

 
Post new topic   Reply to topic    dailysudoku.com Forum Index -> Daily Sudoku puzzles
View previous topic :: View next topic  
Author Message
Clement



Joined: 24 Apr 2006
Posts: 1111
Location: Dar es Salaam Tanzania

PostPosted: Tue Jan 26, 2016 8:19 am    Post subject: Jan 26 VH Reply with quote

Code:

+---------------+---------------+--------------+
| 47   479  1   | 8    6   2    | 3  5    4-9   |
| 8    369  36  | 4    59  135  | 7  19   2    |
| 34   2    5   | *139  7   13   | 8  46   *1469 |
+---------------+---------------+--------------+
| 9    356  8   | 7    1   456  | 2  346  456  |
| 1    3567 367 | 2    45  8    | 59 3467 456-9 |
| 2    567  4   | 56   3   9    | 1  67   8    |
+---------------+---------------+--------------+
| 3457 347  37  | *1359 8   1345 | 6  2    *1579 |
| 456  8    2   | 156-9 459 7    | 59 19   3    |
| 3567 1    9   | 356  2   356  | 4  8    57   |
+---------------+---------------+--------------+

X-Wing on 9 in r37; r8c4, r15c9 <> 9; stte
Back to top
View user's profile Send private message AIM Address
hughwill



Joined: 05 Apr 2010
Posts: 424
Location: Birmingham UK

PostPosted: Tue Jan 26, 2016 11:05 am    Post subject: Re: Jan 26 VH Reply with quote

Clement wrote:
X-Wing on 9 in r37; r8c4, r15c9 <> 9; stte

Well spotted Clement. But I could never learn to like the few
'one X wing and that's it' puzzles, hard to spot yet very unsatisfying somehow.
Perhaps better is the really easy to see W wing on 59s r2c5 r8c7 using the
19s in c8 setting r2c5 to9 stte.
Back to top
View user's profile Send private message
yeoks



Joined: 16 May 2010
Posts: 33

PostPosted: Tue Jan 26, 2016 12:12 pm    Post subject: Reply with quote

Code:

+---------------+---------------+--------------+
| 47   479  1   | 8    6   2    | 3  5    49   |
| 8    369  36  | 4    59  135  | 7  19   2    |
| 34   2    5   | 139  7   13   | 8  46   1469 |
+---------------+---------------+--------------+
| 9    356  8   | 7    1   456  | 2  346  456  |
| 1    3567 367 | 2    45  8    | 59 3467 4569 |
| 2    567  4   | 56   3   9    | 1  67   8    |
+---------------+---------------+--------------+
| 3457 347  37  | 1359 8   1345 | 6  2    1579 |
| 456  8    2   | 1569 459 7    | 59 19   3    |
| 3567 1    9   | 356  2   356  | 4  8    57   |
+---------------+---------------+--------------+

Play this puzzle online at the Daily Sudoku site

Another X-Wing on 9 in c58; r2c2, r8c47<>9 also does it
Back to top
View user's profile Send private message
Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA

PostPosted: Tue Jan 26, 2016 4:52 pm    Post subject: Reply with quote

Quote:
Perhaps better is the really easy to see W wing on 59s r2c5 r8c7 using the
19s in c8 setting r2c5 to9 stte.




Code:

+---------------+---------------+--------------+
| 47   479  1   | 8    6   2    | 3  5    49   |
| 8    369  36  | 4    59  135  | 7  19   2    |
| 34   2    5   | 139  7   13   | 8  46   1469 |
+---------------+---------------+--------------+
| 9    356  8   | 7    1   456  | 2  346  456  |
| 1    3567 367 | 2    45  8    | 59 3467 4569 |
| 2    567  4   | 56   3   9    | 1  67   8    |
+---------------+---------------+--------------+
| 3457 347  37  | 1359 8   1345 | 6  2    1579 |
| 456  8    2   | 1569 459 7    | 59 19   3    |
| 3567 1    9   | 356  2   356  | 4  8    57   |
+---------------+---------------+--------------+


Hugh, I'm confused, as I often am. With the strong link on 9 in c8 connecting the two 59 cells, that means pincer is 5 and the only direct elimination I see is -5r8c5. I don't see how r2c5 would be=9.
Back to top
View user's profile Send private message
hughwill



Joined: 05 Apr 2010
Posts: 424
Location: Birmingham UK

PostPosted: Wed Jan 27, 2016 10:09 am    Post subject: Reply with quote

Marty R. wrote:

Hugh, I'm confused, as I often am. With the strong link on 9 in c8 connecting the two 59 cells, that means pincer is 5 and the only direct elimination I see is -5r8c5. I don't see how r2c5 would be=9.


You're not confused Marty, just correct.

Hugh
Back to top
View user's profile Send private message
dongrave



Joined: 06 Mar 2014
Posts: 568

PostPosted: Wed Jan 27, 2016 9:24 pm    Post subject: Reply with quote

I found yeoks X-Wing but only after systematically checking the numbers one by one; column by column. Since I found one, I didn't get to the one that Clement found because I would have (hopefully) found it when I systematically went through the numbers one by one; row by row. Do you experts have an easier way to find these darn things or do you use the same systematic approach? (ugh.) I usually have a tougher time finding them than I do XY or XYZ-Wings (or even URs). These things can be tough to spot! Thanks in advance, Don.
Back to top
View user's profile Send private message
Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA

PostPosted: Thu Jan 28, 2016 5:05 am    Post subject: Reply with quote

I played the X-Wing. I never liked looking for them,. It's going row by row or column by column, noting the strong links and checking other rowos/columns.
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    dailysudoku.com Forum Index -> Daily Sudoku puzzles All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group