Author: Christophe Theron
Date: 20:01:18 10/11/00
Go up one level in this thread
On October 11, 2000 at 16:12:43, Uri Blass wrote:
>On October 11, 2000 at 13:35:56, Timothy J. Frohlick wrote:
>
>>Jim,
>>
>>Gambit Tiger 1.0 on a PII 333 with 64M RAM does not get the solution either
>>after 8 minutes. I do believe that in order to get this solution the programs
>>would have to see the consequences of the "fifty move rule" and search fifty
>>moves ahead or more. Deeper Blue would have seen it but none of todays PCs can
>>do this.
>
>How do you know that Deeper blue could see it
>I believe that it cannot see it.
>
>Programs do not need to search fifty moves ahead or more in order to avoid Nxb6+
>because of 2 reasons:
>
>1)It may be enough to see that another move give better evaluation without
>seeing that Nxb6 is a draw
>
>2)It may be enough to see by evaluation and not by search that Nxb6 is a draw.
>
> The programs can't conceptualize yet and the knowledge for the
>>millions of specific exceptional positions like this would slow the programs to
>>a crawl.
>
>Knowledge will slow programs only if they use the knowledge.
>
>Programs may use the knowledge for the first 0.1% of the time and stop using it
>later if they find that the knowledge is not relevant.
>
>I believe that the real reason that programs do not know about this position is
>the fact that programmers have more important things to do in order to do their
>programs stronger.
>
>Uri
That's right. The concept of the totally blocked position is not new, and I
guess the other programmers have this in their to-do list, as I have.
But I see a zillion of other things to improve in my program, and they are more
important.
Actually the problem of the blockaded position is almost solved for me, as Tiger
has a mode in which it would definitely NEVER go into the position you have
posted. So being able to solve it or not is of little interest.
I could as well dump my to-do list here, and you would see how dumb commercial
programs (including mine) are. That would probably relieve a little bit the pain
of not being able to win one game out of twenty against them. :)
Christophe
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