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 

Dec 21 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: Wed Dec 21, 2022 10:53 am    Post subject: Dec 21 VH Reply with quote

Hi everyone,

Code:

+-----------+-------------+------------+
| 57  2  4  | 379 359  8  | 6   1  39  |
| 58  6  38 | 239 2359 1  | 7   29 4   |
| 1   9  37 | 237 4    6  | 5   8  23  |
+-----------+-------------+------------+
| 28  5  6  | 239 1    4  | 238 7  289 |
| 3   48 89 | 5   29   7  | 248 6  1   |
| 247 1  79 | 6   8    39 | 234 29 5   |
+-----------+-------------+------------+
| 9   3  2  | 8   6    5  | 1   4  7   |
| 6   7  1  | 4   39   39 | 28  5  28  |
| 48  48 5  | 1   7    2  | 9   3  6   |
+-----------+-------------+------------+

Play this puzzle online at the Daily Sudoku site

Quote:
XY-Wing 2,8,9 in r4c1,r5c35 and -2 in r4c4
or
Skyscraper with number 2 in r25c5,r26c8 and -2 in r5c7
or
2 String Kite with number 2 in r26c8,r5c57 and -2 in r2c5
or
W-Wing 2,9 in r5c5,r6c8 SL with number 9 in r4c49 and -2 in r5c7
or
W-Wing 2,9 in r5c5,r6c8 SL with number 9 in r56c3 and -2 in r5c7


Ciao Gianni
Back to top
View user's profile Send private message
storm_norm22



Joined: 24 Oct 2020
Posts: 15

PostPosted: Wed Dec 21, 2022 4:52 pm    Post subject: Reply with quote

Quote:

xy-wing completes it
interestingly, the xyz-wing that eliminates the 2 in r4c7 doesn't do anything.
Back to top
View user's profile Send private message
TomC



Joined: 30 Oct 2020
Posts: 349
Location: Wales

PostPosted: Wed Dec 21, 2022 5:52 pm    Post subject: Reply with quote

I found the XY wing as well, but it revealed itself long before basics were completed

Looking at the above grid I see an XY chain in r3c39 and r6c38 (23-37-79-29) which removes <2> from r2c8 and r4c9 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