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Subject: Re: To NON-believers in EGTB benefits... (some engines benefit greatly..

Author: Aaron Gordon

Date: 00:56:27 11/21/05

Go up one level in this thread


On November 21, 2005 at 03:42:48, A. Steen wrote:

>On November 21, 2005 at 03:28:11, Aaron Gordon wrote:
>
>>On November 21, 2005 at 03:07:08, A. Steen wrote:
>
>>>Cacheing is thus only a small benefit, as successor EGTBs (sometimes, when
>>>post-promotion as opposed to post-capture, about as large) also have to be
>>>stored.
>>
>>That is "caching", by the way.
>
>Thanks, you lose.  Wolf's Law (Typo-Nazi's "first to mention" lemma).
>
>Your snipping of my refutation of your point tells me all I need to know.
>
>Your "theory" seems to omit the fact that HDDs are (relative to RAM) absolutely
>prehistorically and excruciatingly slow devices, and chess-programming with a-b
>hasn't progressed to the stage where you can often usefully proceed with results
>pending.
>
>>>Can I have some?
>>
>>I think you've had too much already ;)
>
>No, we were referring to the near-instantaneous HDDs which you seem to
>hypothesise about.

That is quite interesting, where exactly did you see me post this hypothesis?
I'd love to read it.

>So, can I have some?
>
>Best,
>
>A.S.

Considering you don't use a massive chunk of the 3-4-5 EGTB set, setting 256mb
EGTB cache works extremely well. The initial load is of little consequence,
assuming you're using a fairly modern hard drive.

Now, if you were talking about systems from the early 1990's setup with slow
hard drives and next to no EGTB cache then I would tend to agree. I have yet to
see however in any endgame position at ~3 minutes per move where it has to load
more EGTBs than my cache size would allow. If there is such a position, please
show me (I am truely interested to see it).



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