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Subject: Re: What is Botvinnik's legacy to computer chess?

Author: blass uri

Date: 05:00:13 02/21/00

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On February 21, 2000 at 07:18:23, leonid wrote:

>On February 21, 2000 at 02:45:11, blass uri wrote:
>
>>On February 20, 2000 at 21:05:47, leonid wrote:
>>
>>>On February 20, 2000 at 19:25:10, blass uri wrote:
>>>
>>>>On February 20, 2000 at 14:39:24, Christophe Theron wrote:
>>>>
>>>>>On February 20, 2000 at 01:39:09, Drazen Marovic wrote:
>>>>>
>>>>>>What is Botvinnik's legacy to computer chess?
>>>>>
>>>>>
>>>>>That to write a good chess program it's better not to be a strong chess player.
>>>>
>>>>I do not agree about it.
>>>>You cannot teach your program things that you do not know.
>>>
>>>You don't teach your game to play but you depose exact logic to go after.
>>
>>I see teaching a program to play the same as deposing exact logic to go after.
>>
>>You cannot depose exact logic that you do not know about.
>>
>>One example:
>>You cannot teach program that KRB vs KRP is usually a draw and that the
>>evaluation should be close to 0.00 if you do not know it and your evaluation by
>>only counting material may be +2 and you cannot see the 0 by search because you
>>cannot search deep enough.
>>
>>Uri
>
>Maybe here it is possible to be lost somehow because of the nebulosity of
>expression like "go after the logic". If the "go after the logic" represent some
>transmission to the game certain human experiece about the game, this experience
>is rather secondery. Such human experience could be recognition of certain pawn
>structure, that make certain position vulnerable, or certain pieces too weak
>when situated in certain board squares. Such a human know-how is not compulsory
>for writing the good chess game. Base of the game can be all the time exact
>calcualtion of the position based on material exchange. All human know-how is
>nothing more but final touches for the game that is already written. And game
>need it only because the hardware is too weak to reach the final solution on its
>own.

I use the word chess program instead of game and I understand that you mean
chess program when you say game.
The word game has nothing to do with programs and computer except the fact that
programs can play a game.

I agree that chess programs need need evaluation function only because the
hardware is too weak but the fact is that practically the hardware is not going
to be good enough in the next few years and it is important to have knowledge
that the search cannot detect if you can do it without doing the program slower.

I do not say that I am sure that adding the knowledge of KRB vs KRP is
productive because if the program is slower because of this knowledge it can be
weaker but programmers who do not know about this rule even do not think about
adding this knowledge so they are at disadvantage relative to programmers who
have more knowledge about chess.

Uri



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