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a little help

 
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Guest
PostPosted: Wed Nov 09, 2005 3:53 am    Post subject: a little help Reply with quote
can someone please explain these fancy techniques to me, like the "swordfish" or the "X wing" and all that good stuff?

Thanks
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David Bryant



Joined: 29 Jul 2005
Posts: 559
Location: Denver, Colorado
PostPosted: Wed Nov 09, 2005 3:33 pm    Post subject: Please read previous posts Reply with quote
Guest wrote:
can someone please explain these fancy techniques to me, like the "swordfish" or the "X wing" and all that good stuff?


A lot has already been written in this forum about the "fancy techniques." Here are some links to information you may find useful.

Good general explanations of solving techniques can be found at SadMan Software and also at rubylips.

Here are some links to discussions on the Daily Sudoku forum.
X-Wing
Swordfish Swordfish Swordfish Swordfish
XY-Wing XY-Wing XY-Wing XY-Wing XY-Wing XY-Wing XY-Wing
Nishio Nishio Nishio
Forcing Chains Forcing Chains
Coloring Coloring
Turbot Fish
I hope that's helpful. If you still have questions after reading that stuff, go ahead and ask again. dcb Very Happy
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Kiwi
Guest
PostPosted: Wed Nov 09, 2005 8:08 pm    Post subject: Re: a little help Reply with quote
Anonymous wrote:
can someone please explain these fancy techniques to me, like the "swordfish" or the "X wing" and all that good stuff?

Thanks



I have found
http://www.simes.clara.co.uk/programs/sudoku.htm good for clear explanations and diagrams.

Also http://sudokusan.com/ is really useful when you're really stuck - has an "assistant" that suggests next move and explains the logic. Good way to learn.

Good Luck!!! Very Happy
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Kiwi
Guest
PostPosted: Wed Nov 09, 2005 8:13 pm    Post subject: Reply with quote
Another site with explanations is[url] hhtp://www.angusj.com/sudoku/hints.php[/url]
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Kiwi
Guest
PostPosted: Wed Nov 09, 2005 8:19 pm    Post subject: Reply with quote
http://www.angusj.com/sudoku/hints.php Very Happy
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