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VH090317

 
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arkietech



Joined: 31 Jul 2008
Posts: 1834
Location: Northwest Arkansas USA

PostPosted: Sun Sep 03, 2017 6:22 am    Post subject: VH090317 Reply with quote

Code:
 *-----------*
 |.27|9.8|.3.|
 |...|.1.|.68|
 |.1.|..3|...|
 |---+---+---|
 |..5|3..|4..|
 |.6.|...|.2.|
 |..2|..4|1..|
 |---+---+---|
 |...|5..|.8.|
 |95.|.2.|...|
 |.3.|8.9|65.|
 *-----------*


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Aj Dimonios



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

PostPosted: Sun Sep 03, 2017 7:56 am    Post subject: Reply with quote

Hi everyone

Code:

+-------------+-----------+-------------+
| 46   2   7  | 9  46   8 | 5   3  1    |
| 5    49  3  | 24 1    7 | 29  6  8    |
| 8    1   69 | 26 5    3 | 279 4  279  |
+-------------+-----------+-------------+
| 1    789 5  | 3  789  2 | 4   79 6    |
| 47   6   49 | 1  79   5 | 8   2  3    |
| 3    789 2  | 67 6789 4 | 1   79 5    |
+-------------+-----------+-------------+
| 2467 47  46 | 5  3    1 | 279 8  2479 |
| 9    5   8  | 47 2    6 | 3   1  47   |
| 247  3   1  | 8  47   9 | 6   5  247  |
+-------------+-----------+-------------+

Play this puzzle online at the Daily Sudoku site

[(4-6)R1C1=(6)R3C3-(6)R7C3 and (4)R1C1-(4)R5C1=(4)R5C3-(4)R7C3]=>contradiction R7C3==>-4R1C1=>solution stte.
Ciao a Tutti
Paolo
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Aj Dimonios



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

PostPosted: Sun Sep 03, 2017 8:37 am    Post subject: Reply with quote

Hi everyone
Other solutions

[(4-7)R5C1=(7)R46C2-(7)R7C2 and (4)R5C1-(4)R5C3=(4)R7C3-(4)R7C2]=>contradiction R7C2==>-4R5C1=>solution stte.
or

or -9R2C2 in correspondence biunivoca with -4R1C1
or -4R7C2 in correspondence biunivoca with -4R1C1
or-4R7C3 in correspondence biunivoca with -4 R5C1

Ciao a Tutti
Paolo
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ZeroAssoluto



Joined: 05 Feb 2017
Posts: 433
Location: Rimini, Italy

PostPosted: Sun Sep 03, 2017 12:27 pm    Post subject: Reply with quote

Hi everyone,

Code:

+-------------+-----------+-------------+
| 46   2   7  | 9  46   8 | 5   3  1    |
| 5    49  3  | 24 1    7 | 29  6  8    |
| 8    1   69 | 26 5    3 | 279 4  279  |
+-------------+-----------+-------------+
| 1    789 5  | 3  789  2 | 4   79 6    |
| 47   6   49 | 1  79   5 | 8   2  3    |
| 3    789 2  | 67 6789 4 | 1   79 5    |
+-------------+-----------+-------------+
| 2467 47  46 | 5  3    1 | 279 8  2479 |
| 9    5   8  | 47 2    6 | 3   1  47   |
| 247  3   1  | 8  47   9 | 6   5  247  |
+-------------+-----------+-------------+

Play this puzzle online at the Daily Sudoku site

some solutions:
W-wing 4,7 in r5c1,r7c2 connected by number 4 in r57c3 and -7 in r4c2,r6c2,r7c1,r9c1
or
W-Wing 4,6 in r1c1,r7c3 connected by number 4 in r5c13 and -6 in r3c3,r7c1
or
W-Wing 4,7 in r5c1,r9c5 connected by number 4 in r1c15 and -7 in r5c5,r9c1
or
XY-Wing 4,6,9 in r1c1,r35c3 and -4 in r5c1
or
XY-Wing 4,6,9 in r2c2,r37c3 and -4 in r7c2

Ciao Gianni
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA

PostPosted: Sun Sep 03, 2017 6:36 pm    Post subject: Reply with quote

I used the 47 W-Wing in b48.
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immpy



Joined: 06 May 2017
Posts: 252

PostPosted: Mon Sep 04, 2017 1:37 am    Post subject: Reply with quote

Yes, I also spotted that first W Wing.

Nice puzzle.
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