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 

Oct 24 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: 1113
Location: Dar es Salaam Tanzania
PostPosted: Tue Oct 23, 2012 11:28 pm    Post subject: Oct 24 VH Reply with quote
Code after Basics
Code:

+-------------+------------+--------------+
| 356 38  568 | 1  9   4   | 56  2   7    |
| 7   2   4   | 5  68  68  | 1   3   9    |
| 1   9   56  | 7  2   3   | 8   4   56   |
+-------------+------------+--------------+
| 8   6   3   | 2  4   157 | 9   17  15   |
| 2   45  7   | 9  16  156 | 3   18  1458 |
| 9   45  1   | 8  3   57  | 457 6   2    |
+-------------+------------+--------------+
| 36  378 9   | 46 178 18  | 2   5   148  |
| 56  1   56-8 | 46 *78  2   | 47  9   3    |
| 4   *78  2   | 3  5   9   | 67  178 168  |
+-------------+------------+--------------+
W-Wing 78 in BOX 78 with SL 7 in row 7; r8c3<>8 solves it.
Back to top
View user's profile Send private message AIM Address
Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Wed Oct 24, 2012 1:40 am    Post subject: Re: Oct 24 VH Reply with quote
Clement wrote:
Code after Basics
Code:

+-------------+------------+--------------+
| 356 38  568 | 1  9   4   | 56  2   7    |
| 7   2   4   | 5  68  68  | 1   3   9    |
| 1   9   56  | 7  2   3   | 8   4   56   |
+-------------+------------+--------------+
| 8   6   3   | 2  4   157 | 9   17  15   |
| 2   45  7   | 9  16  156 | 3   18  1458 |
| 9   45  1   | 8  3   57  | 457 6   2    |
+-------------+------------+--------------+
| 36  378 9   | 46 178 18  | 2   5   148  |
| 56  1   56-8 | 46 *78  2   | 47  9   3    |
| 4   *78  2   | 3  5   9   | 67  178 168  |
+-------------+------------+--------------+
W-Wing 78 in BOX 78 with SL 7 in row 7; r8c3<>8 solves it.


R7c9<>1 due to locked 1s in r9. Then XY-Wing 478 , pivoted in r8c7 is exposed.
Back to top
View user's profile Send private message
Clement



Joined: 24 Apr 2006
Posts: 1113
Location: Dar es Salaam Tanzania
PostPosted: Wed Oct 24, 2012 5:51 am    Post subject: Oct 24 VH Reply with quote
Marty
Yep, my Code is not after Basics Embarassed Thanks for pointing out that.
Back to top
View user's profile Send private message AIM Address
RobertRattley



Joined: 24 Jun 2007
Posts: 118
Location: Australia
PostPosted: Thu Oct 25, 2012 2:10 pm    Post subject: Reply with quote
I also found Marty's xy wing 478

but then after settling 4 more cells I found I needed a second (overlapping) xy wing 478, making this a 2 step VH. Did I miss something?
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