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Subject: Re: feeling the need for speed

Author: Uri Blass

Date: 13:09:22 12/14/05

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On December 14, 2005 at 15:49:44, Joseph Ciarrochi wrote:

>hi folks
>
>(i hope you will tolerate my simple question. i am not a programer, but am
>interested in how chess programs think...I'm a research psychologist)
>
>With humans, the best blitz players have the most knowledge. This is because
>pattern recognition is much faster than deliberate search
>
>But i get the sense that it might be the opposite for computers? ARe the most
>knowledgable programs (e.g., hiarcs) expected to be worse at blitz than ones
>that are optimized for searchd depth? I have heard that the key to blitz is
>simple search depth?
>
>Or have i got it all wrong. Is there indeed a trade off between search depth and
>knowledge?

You got it wrong.
Hiarcs and Rybka are good at blitz based on results that I read(I know nothing
about hiarcs10 but I know results of hiarcs9).

I think that usually the programs that are better at blitz are also better at
long time control.

Note that I also think that usually weaker programs need more hardware advantage
at long time control in order to get 50%.

I think that it may be interesting to make games with time handicap to see how
many minutes different programs need to get 50% against rybka in the following
cases:

1)Rybka get 1 minutes per game
2)Rybka get 3 minutes per game
3)Rybka get 9 minutes per game

I think that handicapped matches with ponder off should be possible under arena.

Uri



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