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Subject: Re: A new Deep Blue ?

Author: Uri Blass

Date: 11:40:44 07/31/01

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On July 31, 2001 at 08:33:20, Robert Hyatt wrote:

>On July 31, 2001 at 07:01:15, Uri Blass wrote:
>
>>On July 31, 2001 at 03:23:47, Christophe Theron wrote:
>>
>>>On July 31, 2001 at 02:59:10, Joshua Lee wrote:
>>>
>>>>Is it possible to use the VIA 800Mhz chips which don't require a fan (i think)
>>>>in parallel to where any program now could outsearch any Deep Blue of the past?
>>>>
>>>>It might take a few thousand chips but if it looks deeper it should mostly be
>>>>better.
>>>>
>>>>I do know that there were supposed to be hundreds of parameters so i would bet
>>>>it is better positionally than most comps now
>>>
>>>
>>>???
>>>
>>>What they call a "parameter" is for example the value of a white rook on A1.
>>>There are 6 piece types, 2 sides, and 64 squares. That makes already 768
>>>parameters.
>>>
>>>Hey I've got thousands of parameters in Tiger then!
>>>
>>>They were better in search, that's for sure, because of their processing power.
>>>
>>>Better in evaluation? That remains to be proved.
>>
>>Better in search?
>>It also remains to be proved.
>>
>>More nodes per second does not mean better in search because other programs may
>>have better search rules.
>>
>>I believe they were inferior in evaluation.
>>The size of the evaluation function is not the important thing.
>>The important things is to get the right numbers in the evaluation function.
>>
>>If you have wrong tables the fact that you have big tables is not going to help
>>you.
>>
>>Uri
>
>
>If their evaluation numbers were so wrong, and their search was so weak, _I_
>for one wish I could make those same mistakes.  What other program has come
>close to beating a current world champion in a match?  Particularly when it
>was obvious that Kasparov wasn't "playing for a draw in any game."\

Chess tiger 14 did almost the same achievement.

Performance of almost 2800 in a tournament is better performance than losing
3.5-2.5 against kasparov in a match and the difference between losing 3.5-2.5
and winning 3.5-2.5 is not big.

The fact that the opponents did not prepare against tiger14 changes nothing
because kasparov also could not prepare against deeper blue.

The 2 losses of kasparov came from mistakes that kasparov usually does not do
against humans.

Resigning in a drawn position never happened to kasparov againat humans
In the last game kasparov played a move that he considers as a mistake based on
his book.

It is clear that he got into a line that he was not ready to play and the fact
that he started to think in a known position(a position that was played in the
past) is a proof for it.

Uri



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