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 

VH Jan 3

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



Joined: 18 Apr 2009
Posts: 112
Location: Sweden

PostPosted: Thu Jan 03, 2013 8:51 am    Post subject: VH Jan 3 Reply with quote

An xy-wing (179) pivoted at r9c3 solves it. A hidden pair (26) is not needed to use.
Back to top
View user's profile Send private message
hughwill



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

PostPosted: Thu Jan 03, 2013 10:01 am    Post subject: VH Jan 3 Reply with quote

After basics:

Code:

+---------------+--------------+--------------+
| 168 9    5    | 1348 124  7  | 28  136 1246 |
| 7   1468 14   | 1348 1249 29 | 5   136 1246 |
| 3   148  2    | 148  5    6  | 789 179 1479 |
+---------------+--------------+--------------+
| 15  15   6    | 7    3    29 | 29  4   8    |
| 29  3    8    | 5    29   4  | 1   67  67   |
| 4   27   79   | 6    8    1  | 3   5   29   |
+---------------+--------------+--------------+
| 19  147  1479 | 2    17   5  | 6   8   3    |
| 26  26   3    | 14   147  8  | 79  179 5    |
| 58  58   17   | 9    6    3  | 4   2   17   |
+---------------+--------------+--------------+

Play this puzzle online at the Daily Sudoku site
Back to top
View user's profile Send private message
Mindwarp



Joined: 13 Sep 2007
Posts: 25
Location: St. Ives, England

PostPosted: Thu Jan 03, 2013 10:20 pm    Post subject: Reply with quote

I didn't find anything hard about this one took me 5 minute 55 second using sweep
Back to top
View user's profile Send private message
keith



Joined: 19 Sep 2005
Posts: 3355
Location: near Detroit, Michigan, USA

PostPosted: Thu Jan 03, 2013 10:32 pm    Post subject: Reply with quote

Mindwarp wrote:
I didn't find anything hard about this one took me 5 minute 55 second using sweep

If you'd like something little harder, try the "Other Puzzles".

If you'd like options for much harder puzzles, try Danny's DAJ puzzles.

No one will mind if you want to reopen a discussion on any of these.

Keith
Back to top
View user's profile Send private message
Mindwarp



Joined: 13 Sep 2007
Posts: 25
Location: St. Ives, England

PostPosted: Fri Jan 04, 2013 4:34 am    Post subject: Reply with quote

Sometimes I find them easy sometimes I find them impossible, this particular puzzle just didn't appear to need anything special to solve it. Normally a VH takes me just over 9 minutes to solve when I can do them. I suspect the one I can't solve are ones that involve techniques I haven't learnt.
Back to top
View user's profile Send private message
Marty R.



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

PostPosted: Fri Jan 04, 2013 4:44 am    Post subject: Reply with quote

Mindwarp wrote:
Sometimes I find them easy sometimes I find them impossible, this particular puzzle just didn't appear to need anything special to solve it. Normally a VH takes me just over 9 minutes to solve when I can do them. I suspect the one I can't solve are ones that involve techniques I haven't learnt.


All VH puzzles here can be solved with nothing more than X-, XY- and XYZ-Wings.
Back to top
View user's profile Send private message
Mindwarp



Joined: 13 Sep 2007
Posts: 25
Location: St. Ives, England

PostPosted: Fri Jan 04, 2013 4:47 am    Post subject: Reply with quote

I probably just haven't spotted them ten when i haven't been able to do them. Jan 4's medium puzzle took longer than Jan 3's VH by nearly a minute. I guess it just depends whether you see the key to solving the puzzles.
Back to top
View user's profile Send private message
Clement



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

PostPosted: Fri Jan 04, 2013 5:02 pm    Post subject: Jan 3 VH Reply with quote

Mindwarp
I came with the same Grid as shown by Hughwill above. As you have pointed out ''This particular puzzle didn't need anything special to solve it". Do you mean you solved it from basics only(sweeping)? Can you show how you did it.
Back to top
View user's profile Send private message AIM Address
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