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Subject: Re: Human pattern recongnition still superior

Author: George Tsavdaris

Date: 16:26:22 07/07/05

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On July 07, 2005 at 19:17:49, Uri Blass wrote:
>>>
>>>http://www.chessville.com/misc/PsychologyofChessSkill.htm
>>>http://www.chessbase.com/newsdetail.asp?newsid=2466
>>
>>
>>I read:
>>"In fact, chess players do not really “visualize” future positions in the sense
>>of a detailed mental image, such having a picture of the board in one's head,
>>but they are able to calculate long series of moves."
>>
>>I do not believe it.
>>How is it possible to play blindfold without having a picture of the board in
>>your head?

I agree of course. I believe that our brain visualizes in any way the Chess
board. The word calculation in the "calculation of a series of moves" statement,
means exactly this! To examine the moves in the board........

>>
>>How is it possible to see that the queen is under threat by a bishop without
>>seeing fast the squares that the bishop control.
>>
>>In games with board there is no problem because I can see that the bishop threat
>>the queen in one second but without a board I do not see the squares in the same
>>diagnol as the bishop(I may calculate them but without a picture it will take me
>>many seconds to see that the bishop threats the queen even if I remember the
>>squares of the bishop and the queen).
>>
>
>I can add that I disagree with the claim that world champions still play better
>than chess softwares
>
>I see no proof for that and the last result suggests that world champions do not
>play better.
>
>I do not buy the claim that humans have better evaluation of pawn structure.
>It may be even the opposite because computers never forget that some pawn is
>isolated pawn in their evaluation of some position in the tree when it never can
>happen to a computer.
>
>I do not think that you can use the knowledge of the world champions to say what
>is the knowledge of humans relative to computers.
>
>There are a lot more humans than chess programs so it is not fair to compare the
>best humans with the best computers.
>
>It is more fair to compare humans that are better than 99.9% of the humans with
>computers that are better than 99.9% of the computers.
>

Using percentages instead of absolute numbers, results in comparing again a
larger number of humans against a smaller of computers as humans are more.
To have a fair comparison you should say:
"It is more fair to compare the top-10 humans with the top-10 computers."



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