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 

Apr 18 VH

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



Joined: 24 Jun 2007
Posts: 118
Location: Australia

PostPosted: Fri Apr 17, 2015 7:38 pm    Post subject: Apr 18 VH Reply with quote

I was stuck for a while until I eliminated a couple more 7s to show a (twin)

xy wing 347 in rows 3 & 7 and columns 5 & 8

(The time of posting of this message seems to be before the day's puzzle should have appeared. But think about the time zone I'm in!)
Back to top
View user's profile Send private message Send e-mail
hughwill



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

PostPosted: Sat Apr 18, 2015 9:43 am    Post subject: Reply with quote

After basics:

Code:

+------------+----------+------------+
| 89   6  89 | 47 1  2  | 35  347 45 |
| 4    7  3  | 5  9  6  | 1   2   8  |
| 1    2  5  | 8  37 34 | 9   47  6  |
+------------+----------+------------+
| 2    1  4  | 9  8  7  | 6   5   3  |
| 38   38 7  | 2  6  5  | 4   1   9  |
| 5    9  6  | 3  4  1  | 2   8   7  |
+------------+----------+------------+
| 6    5  1  | 47 37 9  | 8   34  2  |
| 37   4  2  | 6  5  8  | 37  9   1  |
| 3789 38 89 | 1  2  34 | 357 6   45 |
+------------+----------+------------+

Play this puzzle online at the Daily Sudoku site

A 47 W-wing also does the trick (boxes 2&3) though the 89 UR is not
enough


Last edited by hughwill on Sun Apr 19, 2015 8:53 am; edited 1 time in total
Back to top
View user's profile Send private message
Marty R.



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

PostPosted: Sat Apr 18, 2015 3:54 pm    Post subject: Reply with quote

Quote:
(The time of posting of this message seems to be before the day's puzzle should have appeared. But think about the time zone I'm in!)


Robert,

Some years ago, when we learned how to get a puzzle early, some guys would post them three days early and we had to ask that puzzles not be posted until the puzzle date. No problem with you posting it when you see it, we know where you live.
Back to top
View user's profile Send private message
dongrave



Joined: 06 Mar 2014
Posts: 568

PostPosted: Sun Apr 19, 2015 2:42 pm    Post subject: Reply with quote

Just as an interesting side note, the 89 UR that Hugh referred to in boxes 1 and 7 opens up a 37 UR in boxes 7 and 9 which solves it but, like Hugh, I'd never think of using a UR (let alone two) to solve a puzzle from this site! One other thing I found interesting was that starting with Hugh's diagram, the 89 UR tells us that r9c1 is 3 or 7 but the 38 UR in boxes 4 and 7 tell us that r9c1 is 7 or 9, therefore r9c1 is 7 (but that doesn't solve it either).
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