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 

Mar 28 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: 1019
Location: Rimini, Italy
PostPosted: Tue Mar 27, 2018 10:17 pm    Post subject: Mar 28 VH Reply with quote
Hi everyone,

Code:

+-----------+--------+----------+
| 24 5   1  | 9  7 8 | 3  24  6 |
| 9  38  7  | 23 4 6 | 28 1   5 |
| 6  348 28 | 23 5 1 | 7  248 9 |
+-----------+--------+----------+
| 8  2   5  | 7  3 4 | 6  9   1 |
| 1  9   3  | 6  2 5 | 4  7   8 |
| 47 47  6  | 8  1 9 | 5  3   2 |
+-----------+--------+----------+
| 5  6   28 | 4  9 7 | 1  28  3 |
| 3  1   4  | 5  8 2 | 9  6   7 |
| 27 78  9  | 1  6 3 | 28 5   4 |
+-----------+--------+----------+

Play this puzzle online at the Daily Sudoku site

Quote:
Skyscraper with number 2 in r1c18,r9c17 and -2 in r2c7,r7c8
or
Skyscraper with number 2 in r1c18,r7c38 and -2 in r9c1,r3c3
or
Skyscraper with number 2 in r19c1,r29c7 and -2 in r1c8
or
W-Wing 2,8 in r2c7,r3c3 connected by number 2 in r1c18 and -8 in r2c2,r3c8
or
W-Wing 2,8 in r3c3,r7c8 connected by number 2 in r1c18 and -8 in r7c3,r3c8
or
XY-Wing 2,3,8 in r2c2,r3c34 and -3 in r2c4,r3c2
or
XY-Wing 2,3,8 in r2c24,r3c3 and -2 in r3c4


Ciao Gianni
Back to top
View user's profile Send private message
Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Wed Mar 28, 2018 4:56 am    Post subject: Reply with quote
Code:
┌─────────────────┬─────────────────┬─────────────────┐
│  24     5     1 │   9     7     8 │   3    24     6 │
│                 │                 │                 │
│   9    38     7 │  23     4     6 │  28     1     5 │
│                 │                 │                 │
│   6   348    28 │  23     5     1 │   7   248     9 │
├─────────────────┼─────────────────┼─────────────────┤
│   8     2     5 │   7     3     4 │   6     9     1 │
│                 │                 │                 │
│   1     9     3 │   6     2     5 │   4     7     8 │
│                 │                 │                 │
│  47    47     6 │   8     1     9 │   5     3     2 │
├─────────────────┼─────────────────┼─────────────────┤
│   5     6    28 │   4     9     7 │   1    28     3 │
│                 │                 │                 │
│   3     1     4 │   5     8     2 │   9     6     7 │
│                 │                 │                 │
│  27    78     9 │   1     6     3 │  28     5     4 │
└─────────────────┴─────────────────┴─────────────────┘


BUG+2 8r3c2=2r3c8-(2=8)r7c8=> -8r3c8
Or last term -(2=8)r3c3=> -8r2c2
Back to top
View user's profile Send private message
hughwill



Joined: 05 Apr 2010
Posts: 424
Location: Birmingham UK
PostPosted: Wed Mar 28, 2018 2:24 pm    Post subject: Reply with quote
I think Gianni's second 'W wing' is a bit more complex. Obviously if r3c3=2: r7c3=8 and r7c8=2. What the 'W wing' on r1 shows is that r3c3 and r7c8 can't both be 2 so therefore both must be 8. Don't know what this is called though.....
Back to top
View user's profile Send private message
Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Wed Mar 28, 2018 5:50 pm    Post subject: Reply with quote
hughwill wrote:
I think Gianni's second 'W wing' is a bit more complex. Obviously if r3c3=2: r7c3=8 and r7c8=2. What the 'W wing' on r1 shows is that r3c3 and r7c8 can't both be 2 so therefore both must be 8. Don't know what this is called though.....


Here is Gianni's explanation of the 2nd W-Wing
W-Wing 2,8 in r3c3,r7c8 connected by number 2 in r1c18 and -8 in r7c3,r3c8

This is an ordinary W-Wing. Hugh, you say it's more complex, but more complex than what? I don't know what you're trying to say about both can't be 2 so both must be 8. That is certainty true, but can't you make a similar comment about every W-Wing?

The pattern is interesting with the 2s in r1 connecting two separate W-Wings on 28. I don't know if I've ever seen that.

Perhaps if Keith sees this, he can add something intelligent.






Code:
┌─────────────────┬─────────────────┬─────────────────┐
│  24     5     1 │   9     7     8 │   3    24     6 │
│                 │                 │                 │
│   9    38     7 │  23     4     6 │  28     1     5 │
│                 │                 │                 │
│   6   348    28 │  23     5     1 │   7   248     9 │
├─────────────────┼─────────────────┼─────────────────┤
│   8     2     5 │   7     3     4 │   6     9     1 │
│                 │                 │                 │
│   1     9     3 │   6     2     5 │   4     7     8 │
│                 │                 │                 │
│  47    47     6 │   8     1     9 │   5     3     2 │
├─────────────────┼─────────────────┼─────────────────┤
│   5     6    28 │   4     9     7 │   1    28     3 │
│                 │                 │                 │
│   3     1     4 │   5     8     2 │   9     6     7 │
│                 │                 │                 │
│  27    78     9 │   1     6     3 │  28     5     4 │
└─────────────────┴─────────────────┴─────────────────┘
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