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Christmas Greetings

 
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scorpio56xxl



Joined: 16 Oct 2005
Posts: 7
Location: Bonn, Germany
PostPosted: Thu Dec 29, 2005 7:33 am    Post subject: Christmas Greetings Reply with quote
Hi all,
I wish you a Merry Christmas; it's almost gone Smile), and a Happy New Year with many puzzles of the very hard one type. I like them very much and I always learn new tricks to manage them. By the way the Christmas one from today is the same as from 25.12.05! :Smile). They are marvelous. I could use all the technics like triplets, quadruplets, X-wing, XY-wing.
Just one question. When you have the following pattern is this also a xy-wing? I have learned that XY-wings goes like this:

XY
Code:
       XZ


YZ
Code:
       no Z
(with only two digits and not three ones!)

box 3: 89
Code:
    box 6:  789


box 7: 47
Code:
    box 9:  79


Then I could eliminate the "7" in box 9. The boxes are counted clockwise.
This pattern happened in the christmas tree sudoku puzzle on 23.12.05.
Thanks a lot in advance! Your German sudoku freak

JB alias scorpio56xxljavascript:emoticon('Laughing')
Laughing
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scorpio56xxl



Joined: 16 Oct 2005
Posts: 7
Location: Bonn, Germany
PostPosted: Thu Dec 29, 2005 7:39 am    Post subject: Reply with quote
Hi all,
I am really a beginner with code tecnics. Sorry I try it once more:

code xy xz [/code]

code yz no z [/code]


Code:
box 3: 89 box6: 789


Code:
box 7: 47 box9: 79


Now I can eliminate the "7" in box 9. Smile) Laughing

Greetings!
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samgj
Site Admin


Joined: 17 Jul 2005
Posts: 106
Location: Cambridge
PostPosted: Thu Dec 29, 2005 1:02 pm    Post subject: Re: Christmas Greetings Reply with quote
scorpio56xxl wrote:
I wish you a Merry Christmas; it's almost gone Smile), and a Happy New Year with many puzzles of the very hard one type.


And from me!

Quote:
By the way the Christmas one from today is the same as from 25.12.05!


Darn -- sorry. Too much Christmas cheer is to blame (and being away from my usual setup). I managed to do this one without noticing that I'd done it before though.

Sam
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