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"Die Presse" July 5

 
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nataraj



Joined: 03 Aug 2007
Posts: 1048
Location: near Vienna, Austria

PostPosted: Sun Jul 06, 2008 8:38 pm    Post subject: "Die Presse" July 5 Reply with quote

About the same difficulty as our "very hard"s here:
Code:

+-----------+-----------+-----------+
|  .  6  .  |  .  3  .  |  .  .  1  |
|  3  .  4  |  .  9  .  |  .  .  7  |
|  .  1  .  |  .  .  7  |  3  .  .  |
+-----------+-----------+-----------+
|  .  .  .  |  8  .  .  |  .  .  .  |
|  5  2  .  |  .  .  6  |  .  4  .  |
|  .  .  6  |  .  4  5  |  .  9  .  |
+-----------+-----------+-----------+
|  .  .  8  |  .  .  .  |  .  7  .  |
|  .  .  .  |  .  6  4  |  1  .  .  |
|  4  3  .  |  .  .  .  |  .  .  .  |
+-----------+-----------+-----------+

play online
Source: Die Presse

Hint: When in doubt, try to find an xy-wing (58-28-25 in boxes 2 and 3 appears very early)
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tlanglet



Joined: 17 Oct 2007
Posts: 2468
Location: Northern California Foothills

PostPosted: Sun Jul 06, 2008 9:11 pm    Post subject: Re: "Die Presse" July 5 Reply with quote

nataraj wrote:


Hint: When in doubt, try to find an xy-wing (58-28-25 in boxes 2 and 3 appears very early)


Well, I was not in doubt, but it took an x-wing on <2> and an XY-wing on <157> before I hit the jackpot as noted in your hint.

Ted
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nataraj



Joined: 03 Aug 2007
Posts: 1048
Location: near Vienna, Austria

PostPosted: Sun Jul 06, 2008 10:08 pm    Post subject: Reply with quote

Ted, I can't blame you. I did a lot of coloring (2, 8 ) before I finally looked for and found the xy-wing. But I did the puzzle again and saw that the xy-wing was there very early, so ...
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