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Subject: Re: Big-O notation - correction

Author: Miguel A. Ballicora

Date: 12:14:04 05/09/01

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On May 09, 2001 at 14:11:25, Ricardo Gibert wrote:


>
>But [in chess] the the length of the input does not increase and that's the
>whole point.
>

In my very humble opinion (I am no computer scientist, not even a professional
programmer), you guys are not confusing the answers but confusing the problem!
There are two problems that are different
1) solve chess, know the absolute Truth.
2) solve a given position where the input is the number of plies (n) needed to
see the solution.
Some positions have different "n" so the input changes. In other words, mate in
n would be an example. It is special because the number of possible positions
I can give as input are finite. Still, the algorithm is exponential (in good
programs, in mine is even worse :-)

Regards,
Miguel




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