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 14 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: 868
Location: Rimini, Italy

PostPosted: Thu Jul 14, 2022 9:08 am    Post subject: Jul 14 VH Reply with quote

Hi everyone,

Code:

+-------------+------------+---------------+
| 79  5  279  | 3   28  49 | 6    2478 1   |
| 8   4  1279 | 6   12  59 | 237  27   357 |
| 3   6  12   | 7   128 45 | 9    248  58  |
+-------------+------------+---------------+
| 157 8  47   | 45  9   2  | 1347 6    37  |
| 19  3  49   | 8   7   6  | 14   5    2   |
| 57  2  6    | 1   45  3  | 478  9    78  |
+-------------+------------+---------------+
| 4   19 5    | 29  3   7  | 28   128  6   |
| 2   79 8    | 59  6   1  | 57   3    4   |
| 6   17 3    | 245 45  8  | 257  127  9   |
+-------------+------------+---------------+

Play this puzzle online at the Daily Sudoku site

Quote:
XY-Wing
4,5,7 in r4c34,r6c1 and -5 in r4c1,r6c5
4,5,7 in r4c3,r6c15 and -4 in r4c4


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



Joined: 30 Oct 2020
Posts: 349
Location: Wales

PostPosted: Fri Jul 15, 2022 8:27 pm    Post subject: Reply with quote

I can see this solution but it's taken me longer to explain:

If x=3, a=7, b=4, c=9, d=1 leads to no <1> in box 6
If x=7, b=4, c=9, d=1 leads to no <1> in box 6

So xz is a <14> pair to solve


Code:

+---------------+-------------+------------------+
|  79  5   279  | 3   28   49 |  6     2478  1   |
|  8   4   1279 | 6   12   59 |  237   27    357 |
|  3   6   12   | 7   128  45 |  9     248   58  |
+---------------+-------------+------------------+
|  157 8  b47   | 45  9    2  | x1347  6    a37  |
| d19  3  c49   | 8   7    6  | z14    5     2   |
|  57  2   6    | 1   45   3  |  478   9     78  |
+---------------+-------------+------------------+
|  4   19  5    | 29  3    7  |  28    128   6   |
|  2   79  8    | 59  6    1  |  57    3     4   |
|  6   17  3    | 245 45   8  |  257   127   9   |
+---------------+-------------+------------------+

Tomos

Or, if ax = <37> pair then b=4, c=9, d=1, z=4 leads to <78> pair in box 6, so x is not <37> to solve
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