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 

Jul 17 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: Sun Jul 16, 2017 10:22 pm    Post subject: Jul 17 VH Reply with quote

Hi everyone,

Code:

+-------------+------------+--------+
| 7  8    145 | 3  145 15  | 2  6 9 |
| 6  12   14  | 7  149 129 | 8  3 5 |
| 3  25   9   | 25 6   8   | 1  4 7 |
+-------------+------------+--------+
| 29 59   8   | 25 7   4   | 3  1 6 |
| 4  3    15  | 9  15  6   | 7  2 8 |
| 12 6    7   | 8  3   12  | 5  9 4 |
+-------------+------------+--------+
| 8  79   3   | 4  2   79  | 6  5 1 |
| 19 1479 2   | 6  59  579 | 49 8 3 |
| 5  49   6   | 1  8   3   | 49 7 2 |
+-------------+------------+--------+

Play this puzzle online at the Daily Sudoku site

Some of the options to choose from

Quote:
XY-Wing 1,2,5 in r1c6, r6c6, r4c4 and -5 in r3c4.
XY-Wing 1,2,5 in r6c6, r1c6, r3c4 and -2 in r2c6 and r4c4.
W-Wing 1,5 in r1c6, r5c5 connected by number 5 in r8c56 and -1 in r1c5, r2c5, r6c6.


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



Joined: 01 May 2017
Posts: 339
Location: Sassari Italy

PostPosted: Sun Jul 16, 2017 10:27 pm    Post subject: Reply with quote

Hi everyone

One step solution.
Forcing chain [(1-5)R1C6=(5)R8C6-(5=9)R8C5 and (1)R1C6-(1)R6C6=(1)R6C1-(1=9)R8C1]=>contradiction, two singles 9 in line 8=>-1R1C6=>solution stte.

Ciao a tutti
Paolo
Back to top
View user's profile Send private message
Ajò Dimonios



Joined: 01 May 2017
Posts: 339
Location: Sassari Italy

PostPosted: Mon Jul 17, 2017 3:28 pm    Post subject: Reply with quote

Hi everyone
Code:

+-------------+------------+--------+
| 7  8    145 | 3  145 15  | 2  6 9 |
| 6  12   14  | 7  149 129 | 8  3 5 |
| 3  25   9   | 25 6   8   | 1  4 7 |
+-------------+------------+--------+
| 29 59   8   | 25 7   4   | 3  1 6 |
| 4  3    15  | 9  15  6   | 7  2 8 |
| 12 6    7   | 8  3   12  | 5  9 4 |
+-------------+------------+--------+
| 8  79   3   | 4  2   79  | 6  5 1 |
| 19 1479 2   | 6  59  579 | 49 8 3 |
| 5  49   6   | 1  8   3   | 49 7 2 |
+-------------+------------+--------+

Play this puzzle online at the Daily Sudoku site
Others solutions with one step .
1) [(1-2)R2C2=(2-5)R3C2=(5)R3C4 and (1)R2C2-(1)R12C3=(1)R5C3-(1)R5C5=(1)R6C6-(1=5)R1C6]=>contradiction, two singles 5 in box 2=>-1R2C2=>solution stte.
2) [(9-2)R2C6=(2-5)R3C4=(5)R3C2 and (9)R2C6-(9)R2C5=(9-5)R8C5=(5)R5C5-(5)R4C4=(5)R4C2]=>contradiction, two singles 5 in column 2=>-9R2C6=>solution stte.

Ciao a tutti
Paolo
Back to top
View user's profile Send private message
Ajò Dimonios



Joined: 01 May 2017
Posts: 339
Location: Sassari Italy

PostPosted: Mon Jul 17, 2017 3:57 pm    Post subject: Reply with quote

Hi everyone
Code:

+-------------+------------+--------+
| 7  8    145 | 3  145 15  | 2  6 9 |
| 6  12   14  | 7  149 129 | 8  3 5 |
| 3  25   9   | 25 6   8   | 1  4 7 |
+-------------+------------+--------+
| 29 59   8   | 25 7   4   | 3  1 6 |
| 4  3    15  | 9  15  6   | 7  2 8 |
| 12 6    7   | 8  3   12  | 5  9 4 |
+-------------+------------+--------+
| 8  79   3   | 4  2   79  | 6  5 1 |
| 19 1479 2   | 6  59  579 | 49 8 3 |
| 5  49   6   | 1  8   3   | 49 7 2 |
+-------------+------------+--------+

Play this puzzle online at the Daily Sudoku site
Others solutions with one step .
1) [(2-5)R3C2=(5)R1C3-(5=1)R1C6 and (2)R3C2-(2)R3C4=(2)R4C4-(2=1)R6C6]=>contradiction, two singles 1 in column 6=>-2R3C2=>solution stte.
2) [(2-5)R4C4=(5)R3C4-(5=1)R1C6 and (2)R4C4-(2=1)R6C6]=>contradiction, two singles 1 in column 6=>-2R4C4=>solution 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 -> 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