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 

Jan11 VH

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



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Wed Jan 11, 2017 6:04 am    Post subject: Jan11 VH Reply with quote
Code:

+-------------+---------------+-----------+
| 2   4  789  | 3789 1378 5   | 17  6 13  |
| 6   1  57   | 37   4    2   | 9   8 35  |
| 578 3  5789 | 6    178  789 | 157 2 4   |
+-------------+---------------+-----------+
| 1   9  27   | 4    578  78  | 6   3 25  |
| 37  58 237  | 579  6    79  | 158 4 125 |
| 4   58 6    | 23   23   1   | 58  9 7   |
+-------------+---------------+-----------+
| 9   2  1    | 78   78   3   | 4   5 6   |
| 35  7  4    | 25   9    6   | 23  1 8   |
| 358 6  358  | 1    25   4   | 23  7 9   |
+-------------+---------------+-----------+

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



Joined: 05 Apr 2010
Posts: 422
Location: Birmingham UK
PostPosted: Wed Jan 11, 2017 10:36 am    Post subject: Jan 11 VH Reply with quote
Using Marty's basics, a 275 XY-wing leads via more basics to:
Code:

+-----------+----------+---------+
| 2   4 89  | 39 38 5  | 7  6 1  |
| 6   1 5   | 7  4  2  | 9  8 3  |
| 78  3 789 | 6  1  89 | 5  2 4  |
+-----------+----------+---------+
| 1   9 27  | 4  58 78 | 6  3 25 |
| 357 8 237 | 59 6  79 | 1  4 25 |
| 4   5 6   | 23 23 1  | 8  9 7  |
+-----------+----------+---------+
| 9   2 1   | 8  7  3  | 4  5 6  |
| 35  7 4   | 25 9  6  | 23 1 8  |
| 358 6 38  | 1  25 4  | 23 7 9  |
+-----------+----------+---------+

Play this puzzle online at the Daily Sudoku site

Where an 89-7 XY wing leads to -7r5c1 stte. Interestingly(?), both XY-wings are
in the less common rectangle formation.....Of course I may have missed the
killer one-stepper...
Hugh
Back to top
View user's profile Send private message
Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Wed Jan 11, 2017 12:43 pm    Post subject: Reply with quote
The 27-5 was a one-stepper for me. However, I was doing it with pencil and paper, where my error rate is very high. I'll accept your solution.
Back to top
View user's profile Send private message
Earl



Joined: 30 May 2007
Posts: 677
Location: Victoria, KS
PostPosted: Wed Jan 11, 2017 3:22 pm    Post subject: Jan 11 VH Reply with quote
Unique Rectangle: 58, R5C7 = 1;
789 xy wing at R3C6, R5C1 = 3.

Early 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 -> 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