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VH090217

 
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arkietech



Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
PostPosted: Sat Sep 02, 2017 6:17 am    Post subject: VH090217 Reply with quote
Code:
 *-----------*
 |...|..1|46.|
 |..3|7.5|...|
 |2..|.4.|...|
 |---+---+---|
 |.62|5..|...|
 |7..|...|..1|
 |...|..8|72.|
 |---+---+---|
 |...|.5.|..7|
 |...|4.6|9..|
 |.56|2..|...|
 *-----------*

 


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ZeroAssoluto



Joined: 05 Feb 2017
Posts: 1020
Location: Rimini, Italy
PostPosted: Sat Sep 02, 2017 7:47 am    Post subject: Reply with quote
Hi everyone,

Code:

+---------------+-------------+------------+
| 589  789 5789 | 389  2   1  | 4  6  3589 |
| 6    4   3    | 7    89  5  | 2  1  89   |
| 2    189 1589 | 6    4   39 | 38 7  3589 |
+---------------+-------------+------------+
| 1    6   2    | 5    7   4  | 38 9  38   |
| 7    389 89   | 39   6   2  | 5  4  1    |
| 45   39  45   | 139  139 8  | 7  2  6    |
+---------------+-------------+------------+
| 3489 2   1489 | 1389 5   39 | 6  38 7    |
| 38   178 178  | 4    138 6  | 9  5  2    |
| 389  5   6    | 2    389 7  | 1  38 4    |
+---------------+-------------+------------+

Play this puzzle online at the Daily Sudoku site

XY-Wing 3,8,9 in r2c9, r3c67 and -9 in r2c5, r3c9
or
XY-Wing 3,8,9 in r2c5, r3c67 and -8 in r2c9

Ciao Gianni
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Ajò Dimonios



Joined: 01 May 2017
Posts: 339
Location: Sassari Italy
PostPosted: Sat Sep 02, 2017 8:18 am    Post subject: Reply with quote
Hi everyone

[(3-8)R1C4=(8)R2C5-(8)R89C5=(8)R7C4-(8)R7C8 and (3)R1C4-(3)R3C6=(3)R7C6-(3)R7C8]=>contradiction R7C8=Ø=>-3R1C4=>solution stte.


Ciao a Tutti

Paolo
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Ajò Dimonios



Joined: 01 May 2017
Posts: 339
Location: Sassari Italy
PostPosted: Sat Sep 02, 2017 9:12 am    Post subject: Reply with quote
Hi everyone

Another solution in R1C4.

[(8-3)R1C4=(3)R1C9-(3)R3C7 and (8)R1C4-(8)R2C5=(8)R2C9-(8)R3C7]=>contradiction R3C7=Ø=>-8R1C4=>solution stte.

Ciao a Tutti

Paolo
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