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+ 100521

 
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: 571

PostPosted: Tue Oct 05, 2021 7:20 pm    Post subject: VH+ 100521 Reply with quote

Hello all, enjoy the puzzle...

Code:

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

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: 568

PostPosted: Wed Oct 06, 2021 7:41 pm    Post subject: Reply with quote

Thanks for the puzzle immp! I settled for a 2-step solution and each step used a chain with a contradiction. I hope some others post their solutions!
Back to top
View user's profile Send private message
Mogulmeister



Joined: 03 May 2007
Posts: 1151

PostPosted: Fri Oct 08, 2021 3:27 am    Post subject: Reply with quote

Code:
+----------------+-------------------+---------------+
| 5    26   4    | 127   1237  8     | 267 23  9     |
| 8    3    1    | 9     6     27    | 5   4   27    |
| 26   7    9    | 25    235   4     | 268 238 1     |
+----------------+-------------------+---------------+
| 34   148  6    | 1258  12359 2359  | 128 7   25    |
| 9    18   2    | 15678 157   567   | 3   158 4     |
| 7    5    38   | 128   4     23    | 9   128 6     |
+----------------+-------------------+---------------+
| 1    289  38   | 4     2579  2579  | 27  6   2357  |
| 2346 246  5    | 267   8     1     | 247 9   237   |
| 246  2469 7    | 3     259   2569  | 124 125 8     |
+----------------+-------------------+---------------+


Nice puzzle Immp - after basics.
Back to top
View user's profile Send private message
Mogulmeister



Joined: 03 May 2007
Posts: 1151

PostPosted: Thu Oct 14, 2021 3:00 pm    Post subject: Reply with quote

r13c8 has an ANP 23-238. IF (8=23) then puzzle solved r1c2 <> 6. However, when (23=8 ) I thought I had found a contradiction that proved r3c8 <> 8 but no...back to the drawing board .....fairly sure one could demonstrate that r3c8 <>8. (ed - you can because r6c6 becomes 3 which then creates a row of singles which in turn create multiple contradictions in blocks 8 and 9 so r3c8 def not 8 )

R3c8 <> 8 wasn't one you found was it dongrave ?
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