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+ 100321

 
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: Sun Oct 03, 2021 4:38 pm    Post subject: VH+ 100321 Reply with quote

Hello all, enjoy the puzzle...

Code:

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

Play this puzzle online at the Daily Sudoku site

cheers...immp


Last edited by immpy on Sun Oct 03, 2021 4:40 pm; edited 1 time in total
Back to top
View user's profile Send private message
immpy



Joined: 06 May 2017
Posts: 571

PostPosted: Sun Oct 03, 2021 4:39 pm    Post subject: Reply with quote

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



Joined: 06 Mar 2014
Posts: 568

PostPosted: Mon Oct 04, 2021 6:56 pm    Post subject: Reply with quote

After basics:
Code:

+----------------+--------------+---------------+
| 5   128  1278  | 478 9    6   | 1278 3    248 |
| 4   9    278   | 3   27   1   | 278  6    5   |
| 3   1268 12678 | 5   247  278 | 9    1278 248 |
+----------------+--------------+---------------+
| 9   5    68    | 2   367  37  | 4    78   1   |
| 2   7    4     | 1   8    9   | 3    5    6   |
| 1   68   3     | 47  467  5   | 278  278  9   |
+----------------+--------------+---------------+
| 6   12   9     | 78  127  278 | 5    4    3   |
| 7   4    5     | 9   123  23  | 6    128  28  |
| 8   3    12    | 6   5    4   | 12   9    7   |
+----------------+--------------+---------------+

Then I used the following chain: (2*-1)r9c7=[r9c3-(1=2@)r7c2 =r1c7]-(12@=8)r1c2-(8=2|7)r2c35-(27=8)r2c7-(2*8=7)r6c7-(7=8)r4c8-r4c3=r6c2 contradiction (i.e. 8r16c2) => r9c7 <> 2; stte.

I just noticed though that the chain would be a little cleaner if I had started with the assumption that r7c2 was a 2!
Back to top
View user's profile Send private message
Mogulmeister



Joined: 03 May 2007
Posts: 1151

PostPosted: Fri Oct 08, 2021 3:20 am    Post subject: Reply with quote

Well done dongrave. I see what you mean about starting with r7c2(1=2)!

Can you bring me up to speed with what @ signifies in your Eureka ?
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