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 

VH+ 010723

 
Post new topic   Reply to topic    dailysudoku.com Forum Index -> Other puzzles
View previous topic :: View next topic  
Author Message
immpy



Joined: 06 May 2017
Posts: 569

PostPosted: Sat Jan 07, 2023 6:01 pm    Post subject: VH+ 010723 Reply with quote

Hello all, enjoy the puzzle.

Code:

+-------+-------+-------+
| . . . | 4 . . | 8 9 . |
| 7 . . | 5 1 . | 3 . 6 |
| . . 1 | 9 . . | . . . |
+-------+-------+-------+
| 8 . 9 | 2 . . | . . . |
| . . . | 8 5 1 | . . . |
| . . . | . . 4 | 7 . 5 |
+-------+-------+-------+
| . . . | . . 5 | 1 . . |
| 5 . 7 | . 2 . | . . 9 |
| . 3 6 | . . 9 | . . . |
+-------+-------+-------+

Play this puzzle online at the Daily Sudoku site

cheers...immp
Back to top
View user's profile Send private message
dongrave



Joined: 06 Mar 2014
Posts: 560

PostPosted: Wed Jan 11, 2023 5:50 pm    Post subject: Reply with quote

I had a tough time with this one immpy!

After basics:
Code:
+---------------+---------------+-----------------+
| 236  26   5   | 4   367  2367 | 8   9     1     |
| 7    9    248 | 5   1    28   | 3   24    6     |
| 2346 2468 1   | 9   368  2368 | 25  2457  247   |
+---------------+---------------+-----------------+
| 8    5    9   | 2   367  367  | 46  1     34    |
| 46   7    34  | 8   5    1    | 9   236   23    |
| 126  126  23  | 36  9    4    | 7   8     5     |
+---------------+---------------+-----------------+
| 9    248  248 | 367 3468 5    | 1   23467 23478 |
| 5    148  7   | 136 2    368  | 46  346   9     |
| 124  3    6   | 17  48   9    | 25  2457  2478  |
+---------------+---------------+-----------------+

Then I couldn't find a one-stepper so I ended up settling for 3 steps. The 1st assumed that r9c4 = 1 and hit a contradiction, the 2nd assumed that r2c3 <> 8 and hit a contradiction, and the 3rd assumed that r5c3 = 3 and also hit a contradiction.
Back to top
View user's profile Send private message
immpy



Joined: 06 May 2017
Posts: 569

PostPosted: Tue Jan 17, 2023 7:50 pm    Post subject: Reply with quote

Maybe this one was more of a VH++.

cheers...immp
Back to top
View user's profile Send private message
dongrave



Joined: 06 Mar 2014
Posts: 560

PostPosted: Fri Jan 20, 2023 2:50 am    Post subject: Reply with quote

So that's it? No one else is going to post a solution for this one? If that's the case, then I guess this really was a VH++! (Ugh!)
Back to top
View user's profile Send private message
glesco



Joined: 12 May 2022
Posts: 35

PostPosted: Mon Jan 23, 2023 2:11 am    Post subject: Reply with quote

I used a chain of 8s anchored at r2c3 & r8c2 which removes 8s from r3c2 & r7c3. The later gives an 8 at r2c3 by virtue of column 3.

That led to a contradiction of 4s in box 7. That filled out most of the puzzle.

Used an xy-wing to complete.
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    dailysudoku.com Forum Index -> Other 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