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 

Jul 27 VH

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



Joined: 05 Feb 2017
Posts: 933
Location: Rimini, Italy

PostPosted: Wed Jul 27, 2022 9:05 am    Post subject: Jul 27 VH Reply with quote

Hi everyone,

Code:

+------------+------------+------------+
| 128 125 28 | 245 259 7  | 459 3   6  |
| 9   6   3  | 8   1   45 | 2   45  7  |
| 4   25  7  | 6   259 3  | 8   1   59 |
+------------+------------+------------+
| 23  8   9  | 1   6   45 | 7   25  34 |
| 236 27  5  | 47  8   9  | 1   26  34 |
| 16  17  4  | 57  3   2  | 569 8   59 |
+------------+------------+------------+
| 58  9   68 | 3   45  1  | 456 7   2  |
| 25  4   1  | 25  7   6  | 3   9   8  |
| 7   3   26 | 9   245 8  | 456 456 1  |
+------------+------------+------------+

Play this puzzle online at the Daily Sudoku site

Quote:
XYZ-Wing 2,3,6 in r4c1,r5c18 and -2 in r5c2


Ciao Gianni
Back to top
View user's profile Send private message
TomC



Joined: 30 Oct 2020
Posts: 358
Location: Wales

PostPosted: Wed Jul 27, 2022 9:28 am    Post subject: Another way Reply with quote

XY chain abcd shows that if a=3 then d=4 OR if d=7 then a=4

So either a or d must be <4>

Pincers for <4> in a + d give -4 in r5c9 to solve (edit: and of course -4 in r4c6 as well)

Code:

+---------------+---------------+--------------+
|  128  125  28 |  245  259  7  | 459  3    6  |
|  9    6    3  |  8    1    45 | 2    45   7  |
|  4    25   7  |  6    259  3  | 8    1    59 |
+---------------+---------------+--------------+
| b23   8    9  |  1    6   -45 | 7    25  a34 |
|  236 c27   5  | d47   8    9  | 1    26  -43 |
|  16   17   4  |  57   3    2  | 569  8    59 |
+---------------+---------------+--------------+
|  58   9    68 |  3    45   1  | 456  7    2  |
|  25   4    1  |  25   7    6  | 3    9    8  |
|  7    3    26 |  9    245  8  | 456  456  1  |
+---------------+---------------+--------------+


Last edited by TomC on Fri Jul 29, 2022 7:23 am; edited 1 time in total
Back to top
View user's profile Send private message
TomC



Joined: 30 Oct 2020
Posts: 358
Location: Wales

PostPosted: Wed Jul 27, 2022 10:55 am    Post subject: and another ... Reply with quote

Or you could have -6 in r9c8 to avoid the <45> UR in r79c57
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