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Jul 4 VH

 
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Clement



Joined: 24 Apr 2006
Posts: 1111
Location: Dar es Salaam Tanzania
PostPosted: Wed Jul 03, 2013 11:10 pm    Post subject: Jul 4 VH Reply with quote
Code:

+-----------+-----------+-------------+
| 2  *56  8  | 7   1  9  | 3   *456  45 |
| 9  37  37 | 4   6  5  | 2   8    1  |
| 56 1   4  | 8   2  3  | 56  79   79 |
+-----------+-----------+-------------+
| 4  8   36 | 169 35 7  | 15  2    59 |
| 7  3-6  2  | 169 35 16 | 4   159  8  |
| 1  9   5  | 2   8  4  | 7   3    6  |
+-----------+-----------+-------------+
| 8  45-6 9  | 3   7  16 | 156 145-6 2  |
| 3  *467 1  | 5   9  2  | 8   *467  47 |
| 56 2   67 | 16  4  8  | 9   15-67 3  |
+-----------+-----------+-------------+
X-Wing on 6 in r18; r57c2<>6, r79c8<>6 opens W-Wing 19 in BOX56 with SL1 in row 9; r5c4<>9 leading to BUG+1; r7c8=5, stte.
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roaa



Joined: 18 Apr 2009
Posts: 112
Location: Sweden
PostPosted: Thu Jul 04, 2013 9:39 am    Post subject: Reply with quote
I needed 2 xy-wings after the x-wing, both 456.
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Thu Jul 04, 2013 4:37 pm    Post subject: Reply with quote
I used the X-Wing on 6, then an XY-Wing on 145. Then there was a choice of an XYZ-Wing on 145 or XY-Wing 561 to finish.

It's unusual for these to require three moves.
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills
PostPosted: Fri Jul 05, 2013 11:41 am    Post subject: Reply with quote
It may be still "unusual", but two skyscrapers also solves the puzzle.

Skyscraper(5)r39c1 => r1c8,r7c7<>5
Skyscraper(1)r49c4 => r5c8,r7c7<>1

Ted
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