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 

Stumped

 
Post new topic   Reply to topic    dailysudoku.com Forum Index -> Other puzzles
View previous topic :: View next topic  
Author Message
Earl



Joined: 30 May 2007
Posts: 677
Location: Victoria, KS

PostPosted: Thu Jun 28, 2007 1:32 pm    Post subject: Stumped Reply with quote

Can any one see a possible next move on this puzzle?
The "Hint" under "play/show" says "too difficult."

Earl

Code:

+-------+-------+-------+
| . 2 4 | 3 . 9 | 1 . . |
| 3 8 . | 4 1 . | . 9 2 |
| . 1 9 | . . 5 | . . 4 |
+-------+-------+-------+
| 9 7 . | . . 1 | . 4 . |
| 1 5 . | 8 . 4 | . 7 6 |
| . 4 . | 7 . 2 | . 1 3 |
+-------+-------+-------+
| 4 3 . | 9 . . | . 2 . |
| 2 6 . | . 4 . | . . 9 |
| . 9 7 | . . 3 | 4 6 . |
+-------+-------+-------+

Play this puzzle online at the Daily Sudoku site
Back to top
View user's profile Send private message Send e-mail
Myth Jellies



Joined: 27 Jun 2006
Posts: 64

PostPosted: Thu Jun 28, 2007 3:05 pm    Post subject: Reply with quote

An X-wing on 7's, then in one of the affected columns lurks a hidden triple.
Back to top
View user's profile Send private message
TKiel



Joined: 22 Feb 2006
Posts: 292
Location: Kalamazoo, MI

PostPosted: Thu Jun 28, 2007 10:26 pm    Post subject: Reply with quote

Or, with a nod to the thread about complementary sets and different ways of seeing things, a naked quad.
Back to top
View user's profile Send private message
Earl



Joined: 30 May 2007
Posts: 677
Location: Victoria, KS

PostPosted: Fri Jun 29, 2007 2:19 am    Post subject: Stumped Reply with quote

Thanks for the hep.
I got his far.
Any further help?

Earl

Code:

+-----------+-------------+---------------+
| 567 2 4   | 3   678  9  | 1    58  578  |
| 3   8 56  | 4   1    67 | 567  9   2    |
| 67  1 9   | 26  2678 5  | 368  38  4    |
+-----------+-------------+---------------+
| 9   7 23  | 56  356  1  | 258  4   58   |
| 1   5 23  | 8   39   4  | 29   7   6    |
| 68  4 68  | 7   59   2  | 59   1   3    |
+-----------+-------------+---------------+
| 4   3 158 | 9   67   68 | 58   2   1578 |
| 2   6 158 | 15  4    78 | 3578 358 9    |
| 58  9 7   | 125 25   3  | 4    6   158  |
+-----------+-------------+---------------+

Play this puzzle online at the Daily Sudoku site
Back to top
View user's profile Send private message Send e-mail
Marty R.



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

PostPosted: Fri Jun 29, 2007 4:28 am    Post subject: Re: Stumped Reply with quote

Earl wrote:
Thanks for the hep.
I got his far.
Any further help?

Earl

Code:

+-----------+-------------+---------------+
| 567 2 4   | 3   678  9  | 1    58  578  |
| 3   8 56  | 4   1    67 | 567  9   2    |
| 67  1 9   | 26  2678 5  | 368  38  4    |
+-----------+-------------+---------------+
| 9   7 23  | 56  356  1  | 258  4   58   |
| 1   5 23  | 8   39   4  | 29   7   6    |
| 68  4 68  | 7   59   2  | 59   1   3    |
+-----------+-------------+---------------+
| 4   3 158 | 9   67   68 | 58   2   1578 |
| 2   6 158 | 15  4    78 | 3578 358 9    |
| 58  9 7   | 125 25   3  | 4    6   158  |
+-----------+-------------+---------------+

Play this puzzle online at the Daily Sudoku site


There's a skyscraper on 5 in columns 1 and 8 which will take out a 5 in boxes 7 and 9. That exposes a 185 XY-Wing based in r8c3 and a W-Wing on the 18s in boxes 7 and 9.
Back to top
View user's profile Send private message
Mogulmeister



Joined: 03 May 2007
Posts: 1151

PostPosted: Fri Jun 29, 2007 6:27 am    Post subject: Complement Reply with quote

Earl just in case you missed it first time, you need to look at Myth's Hidden Triple or the easier to see naked quad (column 7) which is, as Tracy points out, the complement of the hidden triple.

The quad contains {2,5,8,9} which makes other eliminations in column 7 which will leave a single 5 in row 2 and after that it is easy.
Back to top
View user's profile Send private message
Earl



Joined: 30 May 2007
Posts: 677
Location: Victoria, KS

PostPosted: Fri Jun 29, 2007 3:56 pm    Post subject: stumpted Reply with quote

Thanks for all the help.

I also found a w-wing of 67's in boxes 1 and 2.

And "Hint" said it was too difficult.

Not for you guys.

Earl
Back to top
View user's profile Send private message Send e-mail
Display posts from previous:   
Post new topic   Reply to topic    dailysudoku.com Forum Index -> Other 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