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vh092317

 
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arkietech



Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA
PostPosted: Sat Sep 23, 2017 5:20 am    Post subject: vh092317 Reply with quote
Code:
 *-----------*
 |643|1.2|...|
 |2..|.8.|5..|
 |..7|...|...|
 |---+---+---|
 |.9.|...|.32|
 |...|.4.|...|
 |43.|...|.7.|
 |---+---+---|
 |...|...|9..|
 |..5|.1.|..4|
 |...|5.7|368|
 *-----------*


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Ajò Dimonios



Joined: 01 May 2017
Posts: 339
Location: Sassari Italy
PostPosted: Sat Sep 23, 2017 7:22 am    Post subject: Reply with quote
Hi everyone

Code:

+------------+--------------+---------+
| 6  4  3    | 1    5  2    | 8  9 7  |
| 2  1  9    | 7    8  6    | 5  4 3  |
| 58 58 7    | 49   3  49   | 2  1 6  |
+------------+--------------+---------+
| 58 9  168  | 68   7  158  | 4  3 2  |
| 7  56 126  | 2369 4  1359 | 16 8 59 |
| 4  3  1268 | 2689 26 1589 | 16 7 59 |
+------------+--------------+---------+
| 3  7  68   | 2468 26 48   | 9  5 1  |
| 9  68 5    | 368  1  38   | 7  2 4  |
| 1  2  4    | 5    9  7    | 3  6 8  |
+------------+--------------+---------+

Play this puzzle online at the Daily Sudoku site

[(8)R4C4-(8)R6C46=(8)R6C3-(8)R7C3 and (8-6)R4C4=(6)R4C3-(6)R7C3]=>contradiction R7C3=Ø=>-8R4C4=>stte.

Ciao a Tutti

Paolo
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ZeroAssoluto



Joined: 05 Feb 2017
Posts: 942
Location: Rimini, Italy
PostPosted: Sat Sep 23, 2017 9:12 am    Post subject: Reply with quote
Hi everyone,

Code:

+------------+--------------+---------+
| 6  4  3    | 1    5  2    | 8  9 7  |
| 2  1  9    | 7    8  6    | 5  4 3  |
| 58 58 7    | 49   3  49   | 2  1 6  |
+------------+--------------+---------+
| 58 9  168  | 68   7  158  | 4  3 2  |
| 7  56 126  | 2369 4  1359 | 16 8 59 |
| 4  3  1268 | 2689 26 1589 | 16 7 59 |
+------------+--------------+---------+
| 3  7  68   | 2468 26 48   | 9  5 1  |
| 9  68 5    | 368  1  38   | 7  2 4  |
| 1  2  4    | 5    9  7    | 3  6 8  |
+------------+--------------+---------+

Play this puzzle online at the Daily Sudoku site

Quote:
XY-Wing 5,6,8 in r4c14,r5c2 and -6 in r4c3,r5c4
or
Skyscraper with number 6 in r4c34,r8c24 and -6 in r5c2,r7c3


Ciao Gianni
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immpy



Joined: 06 May 2017
Posts: 571
PostPosted: Sat Sep 23, 2017 1:14 pm    Post subject: Reply with quote
There are several techniques available to be applied here for solving, with a few XY-Wings visible.

I chose the 59 Unique Rectangle in boxes 5 and 6; r56c69 which has a Unique Side of (1) in c6. r4c6<>1....and basics follow to the end.

Very nice puzzle arkietech....thank you for posting.
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