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 

Dec 22 VH

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



Joined: 05 Apr 2010
Posts: 424
Location: Birmingham UK
PostPosted: Tue Dec 22, 2015 11:45 am    Post subject: Dec 22 VH Reply with quote
Code:

+-----------+-------------+-----------+
| 4  9  7   | 356  8  35  | 2  356 1  |
| 2  5  6   | 139  4  139 | 39 8   7  |
| 1  8  3   | 569  2  7   | 59 56  4  |
+-----------+-------------+-----------+
| 69 7  12  | 59   13 4   | 8  35  26 |
| 3  4  5   | 28   6  28  | 1  7   9  |
| 69 12 8   | 7    13 59  | 35 4   26 |
+-----------+-------------+-----------+
| 5  12 124 | 1248 7  128 | 6  9   3  |
| 7  6  9   | 13   5  13  | 4  2   8  |
| 8  3  24  | 24   9  6   | 7  1   5  |
+-----------+-------------+-----------+

Play this puzzle online at the Daily Sudoku site

One step:
Quote:
35-9 XYwing pivot r6c7)
Back to top
View user's profile Send private message
the_lock_man



Joined: 18 Dec 2012
Posts: 40
Location: Portsmarfff, UK
PostPosted: Tue Dec 22, 2015 12:26 pm    Post subject: Reply with quote
I used what I think is a W-Wing.

The pincer cells are the "35" in R1C6 and R4C8, strong link on 5 in box 5, and it sets R1C8<>3. Everything is basics from thereon in.
Back to top
View user's profile Send private message
Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Tue Dec 22, 2015 1:36 pm    Post subject: Reply with quote
the_lock_man wrote:
I used what I think is a W-Wing.

The pincer cells are the "35" in R1C6 and R4C8, strong link on 5 in box 5, and it sets R1C8<>3. Everything is basics from thereon in.


Yes, it's a W-Wing. Good job spotting that strong link. Strong links are harder to spot in boxes than rows and columns, at least for me they are. When I looked at the two 35 cells I saw the strong link in column 4.
Back to top
View user's profile Send private message
dongrave



Joined: 06 Mar 2014
Posts: 568
PostPosted: Wed Dec 23, 2015 2:04 am    Post subject: Reply with quote
I had the same solution as Hugh again - but I wanted to mention that r7c46 in his diagram can't be 1 because of the naked 13 pair in box 8 (or the locked 1's in box 7) and that opens up the (useless) 28 UR type 1. At least the 13 UR type 2 looks like it solves it - but I doubt any serious person would use it.

Hey! By the way, the H streak lives on! And if we get an H tomorrow, that'll make 12 in a row from the beginning of the month! None of us will probably be around to ever see another 11 in a row from the beginning of a month - for any difficulty level - provided of course that Sam didn't cut corners on his 'random number' generator. If anyone out there wants me to bore them to death with the odds, let me know!
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