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Oct 12 VH

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hughwill

Joined: 05 Apr 2010
Posts: 424
Location: Birmingham UK

Posted: Wed Oct 12, 2016 10:28 am Post subject: Oct 12 VH

After basics:

Code:

+-----------+------------+------------+
| 13 35 6 | 8 9 4 | 17 2 57 |
| 27 9 27 | 1 56 56 | 8 3 4 |
| 8 4 15 | 3 2 7 | 9 15 6 |
+-----------+------------+------------+
| 5 78 3 | 4 18 189 | 2 6 79 |
| 4 6 278 | 27 58 589 | 3 79 1 |
| 27 1 9 | 27 36 36 | 5 4 8 |
+-----------+------------+------------+
| 6 35 15 | 9 7 13 | 4 8 2 |
| 9 2 4 | 6 138 138 | 17 157 357 |
| 13 78 78 | 5 4 2 | 6 19 39 |
+-----------+------------+------------+

Play this puzzle online at the Daily Sudoku site
One step today:

Quote:

A 19-7 XY wing pivot r9c8::-7r8c8::9r9c8 stte

Hugh

JC Van Hay

Joined: 13 Jun 2010
Posts: 494
Location: Charleroi, Belgium

Posted: Wed Oct 12, 2016 11:33 am Post subject:

Code:

+---------------+--------------+-----------------+
| 3(1) 35 6 | 8 9 4 | 7(1) 2 57 |
| 27 9 27 | 1 56 56 | 8 3 4 |
| 8 4 15 | 3 2 7 | 9 5-1 6 |
+---------------+--------------+-----------------+
| 5 78 3 | 4 18 189 | 2 6 79 |
| 4 6 278 | 27 58 589 | 3 79 1 |
| 27 1 9 | 27 36 36 | 5 4 8 |
+---------------+--------------+-----------------+
| 6 35 15 | 9 7 13 | 4 8 2 |
| 9 2 4 | 6 138 138 | 7-1 157 357 |
| 3(1) 78 78 | 5 4 2 | 6 9(1) 39 |
+---------------+--------------+-----------------+

XWing{1L19} -> -{1r3c8, 1r8c7}; stte

Marty R.

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

Posted: Wed Oct 12, 2016 1:44 pm Post subject:

I never noticed the XY-Wing, I did see the 157 XYZ-Wing hinged in r8c8=> -1r9c8.

hughwill

Joined: 05 Apr 2010
Posts: 424
Location: Birmingham UK

Posted: Thu Oct 13, 2016 1:38 pm Post subject:

JC Van Hay wrote:

[XWing{1L19} -> -{1r3c8, 1r8c7}; stte

And is that a skyscraper on 1 c17 -1r9c8 stte ?

Marty R.

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

Posted: Thu Oct 13, 2016 7:35 pm Post subject:

I'm not JC, but he played a Skyscraper/ X-Wing in r19, but your c17 works too.

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