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 

Feb 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: 941
Location: Rimini, Italy
PostPosted: Tue Feb 27, 2018 11:20 pm    Post subject: Feb 28 VH Reply with quote
Hi everyone,

Code:

+----------+--------------+---------+
| 3   1 57 | 6   457 457  | 2   9 8 |
| 2   9 4  | 3   8   1    | 6   7 5 |
| 6   8 57 | 29  579 257  | 1   3 4 |
+----------+--------------+---------+
| 589 7 89 | 18  15  6    | 3   4 2 |
| 1   3 6  | 4   2   9    | 5   8 7 |
| 58  4 2  | 7   35  358  | 9   6 1 |
+----------+--------------+---------+
| 4   2 19 | 19  6   78   | 78  5 3 |
| 7   6 18 | 5   134 348  | 48  2 9 |
| 89  5 3  | 289 479 2478 | 478 1 6 |
+----------+--------------+---------+

Play this puzzle online at the Daily Sudoku site

Quote:
W-Wing 8,9 in r4c3,r9c1 connected by number 8 in r49c4 and -9 in r4c1,r7c3
or
W-Wing 1,8 in r4c4,r8c3 connected by number 1 in r7c34 and -8 in r4c3
or
XY-Wing 1,8,9 in r4c34,r7c3 and -1 in r7c4
or
XY-Wing 1,8,9 in r4c34,r7c4 and -9 in r7c3
or
Skyscraper with number 8 in r48c3,r49c4 and -8 in r8c6,r9c1


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



Joined: 01 May 2017
Posts: 339
Location: Sassari Italy
PostPosted: Wed Feb 28, 2018 8:18 am    Post subject: Reply with quote
Hi everyone
[(8-9)R4C3=9R7C3-9R9C1 and 8R4C3-8R4C4=8R9C4-8R9C1]=>contradiction (R9C1=Ø)=>-8R4C3=>stte.
Ciao a Tutti
Paolo
Back to top
View user's profile Send private message
immpy



Joined: 06 May 2017
Posts: 571
PostPosted: Wed Feb 28, 2018 2:00 pm    Post subject: Reply with quote
I'll simply leave it to others to solve this with divergent routes. But, of course, you know, there is an XY-Wing which solves it in one step.

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



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Wed Feb 28, 2018 3:21 pm    Post subject: Reply with quote
Code:
┌────────────────────┬────────────────────┬────────────────────┐
│    3      1     57 │    6    457    457 │    2      9      8 │
│                    │                    │                    │
│    2      9      4 │    3      8      1 │    6      7      5 │
│                    │                    │                    │
│    6      8     57 │   29    579    257 │    1      3      4 │
├────────────────────┼────────────────────┼────────────────────┤
│  589      7     89 │   18     15      6 │    3      4      2 │
│                    │                    │                    │
│    1      3      6 │    4      2      9 │    5      8      7 │
│                    │                    │                    │
│   58      4      2 │    7     35    358 │    9      6      1 │
├────────────────────┼────────────────────┼────────────────────┤
│    4      2     19 │   19      6     78 │   78      5      3 │
│                    │                    │                    │
│    7      6     18 │    5    134    348 │   48      2      9 │
│                    │                    │                    │
│   89      5      3 │  289    479   2478 │  478      1      6 │
└────────────────────┴────────────────────┴────────────────────┘


Kite (8) hinged b4 8r8c3=r6c6-r789c6=r9c4=> -8r9c1
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