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 

Extreme VH 012619

 
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: 235

PostPosted: Sat Jan 26, 2019 5:56 am    Post subject: Extreme VH 012619 Reply with quote

Only VH techniques are necessary; Finned X-Wings are also possible.
Enjoy the puzzle...

Code:

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

Play this puzzle online at the Daily Sudoku site

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



Joined: 05 Feb 2017
Posts: 394
Location: Rimini, Italy

PostPosted: Sat Jan 26, 2019 10:41 am    Post subject: Reply with quote

Hi everyone,

Code:

+--------------+-------------+----------------+
| 56  13  56   | 2    17 4   | 8     37  9    |
| 17  9   4    | 1357 8  357 | 157   2   6    |
| 8   123 127  | 157  9  6   | 157   4   1357 |
+--------------+-------------+----------------+
| 17  6   137  | 37   2  9   | 4     5   8    |
| 29  4   237  | 8    5  1   | 2679  367 237  |
| 259 8   2357 | 6    4  37  | 279   1   237  |
+--------------+-------------+----------------+
| 26  5   126  | 9    3  27  | 127   8   4    |
| 4   7   8    | 15   6  25  | 3     9   12   |
| 3   12  9    | 4    17 8   | 12567 67  1257 |
+--------------+-------------+----------------+

Play this puzzle online at the Daily Sudoku site

XY-Wing 1,2,7 in r7c6,r9c25 and -2 in r7c13

Code:

+----------+-----------+---------------+
| 5  13 6  | 2   17 4  | 8    37  9    |
| 7  9  4  | 135 8  35 | 15   2   6    |
| 8  13 2  | 157 9  6  | 157  4   1357 |
+----------+-----------+---------------+
| 1  6  37 | 37  2  9  | 4    5   8    |
| 29 4  37 | 8   5  1  | 2679 367 237  |
| 29 8  5  | 6   4  37 | 279  1   237  |
+----------+-----------+---------------+
| 6  5  1  | 9   3  27 | 27   8   4    |
| 4  7  8  | 15  6  25 | 3    9   12   |
| 3  2  9  | 4   17 8  | 1567 67  157  |
+----------+-----------+---------------+

Play this puzzle online at the Daily Sudoku site

UR 2,9 in r56c17 and -2 in r56c7

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



Joined: 01 May 2017
Posts: 338
Location: Sassari Italy

PostPosted: Sat Jan 26, 2019 6:22 pm    Post subject: Reply with quote

Paolo
Hi everyone.
Code:

+--------------+-------------+----------------+
| 56  13  56   | 2    17 4   | 8     37  9    |
| 17  9   4    | 1357 8  357 | 157   2   6    |
| 8   123 127  | 157  9  6   | 157   4   1357 |
+--------------+-------------+----------------+
| 17  6   137  | 37   2  9   | 4     5   8    |
| 29  4   237  | 8    5  1   | 2679  367 237  |
| 259 8   2357 | 6    4  37  | 279   1   237  |
+--------------+-------------+----------------+
| 26  5   126  | 9    3  27  | 127   8   4    |
| 4   7   8    | 15   6  25  | 3     9   12   |
| 3   12  9    | 4    17 8   | 12567 67  1257 |
+--------------+-------------+----------------+

Play this puzzle online at the Daily Sudoku site
One step after basics
If R1C5=1=>contradiction =>-1R1C5=>solution.
(1-7)R1C5=(7-3)R1C8=3R3C9-3R56C9;1R1C5-1R9C5=(1-5)R8C4=(5-2)R8C6=2R8C9-2R56C9=7R56C9 => two 7 in box 6=>-1R1C5=>stte
Ciao a Tutti
Paolo
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