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

Author: blass uri

Date: 10:53:28 02/21/00

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On February 21, 2000 at 13:41:01, Christophe Theron wrote:

>On February 20, 2000 at 20:59:06, leonid 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.
>>>
>>>Strong players have too much prejudices about how to write a chess program.
>>>
>>>In order to write a good chess program you must be ready to forget all you know
>>>about chess, and re-discover it completely. Strong chess players have spent
>>>years in learning the game and improving their play, so they are obviously not
>>>ready to get into the process of forgetting everything.
>>>
>>>In the future, it will happen to me too. Chess programming will certainly
>>>evolve, but as I have spent nearly 20 years in programming Chess Tiger, I'll
>>>probably be unable to adapt myself to totally new techniques. I'll become a
>>>dinosaur and young programmers will take over me - and all my peers.
>>>
>>>I hope this is not going to happen tomorrow, though.
>>>
>>>
>>>
>>>    Christophe
>>
>>
>>I believe that reality is even more simple that what you have said. Problem is
>>not that much with the "big secret" to descover, in order to write the good
>>chess game from scrach, problem is in the hardware speed. 20 or 30 years ago it
>>was a shame and now it is only slightly better. Good game of today is able to
>>see, without any artificial tricks, only 6 plies in few seconds in mid game. All
>>the beauty of the best games is that they provide us with some decent chess game
>>even before our hardware will permit it. Good game make all kind of sofisticated
>>acrobatics in order to glance some next 4 or 6 plies deep into game, to make it
>>enjoyable right now. But when the hardware will privide us with all those 10, 12
>>plies brute search to start with? Then writing the new good chess game from
>>scratch will become as simple as doing our three years of college.
>>
>>Leonid.
>
>
>Check your numbers. Most top commercial programs will compute 10 plies in the
>middlegame in a few seconds (in say, less than 10 seconds) on current fast PCs.
>
>Most of them compute 13-15 plies at 40 moves in 2 hours in the middlegame.

The brute force depth is not 13-15 plies because they do pruning(like null
moves).

Uri



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