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Subject: Re: no more comments???

Author: Uri Blass

Date: 22:32:52 07/24/02

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On July 24, 2002 at 21:54:12, Robert Hyatt wrote:

>On July 24, 2002 at 13:13:11, Gian-Carlo Pascutto wrote:
>>On July 23, 2002 at 12:08:43, Uri Blass wrote:
>>>I still do not use hash tables to save generating moves and it is another gain
>>>that I can get from hash tables.
>>That gain is very small - I still don't do it either.
>I think for me it was about 10%.  Not huge.  Not ignorable either.  if you
>count the number of times the hash move causes a fail high, that is the number
>of move generations you will totally avoid...  It may or may not be a lot
>depending on other factors...


It is not the number of move generations to avoid for me.
You should multiply it by the number of legal moves because
I generate them before looking at the hash tables.

I still did not change it and in the last days there are other
simple changes that I tested.

Every change may do the program only slightly better and I prefer
to test after every small change in the search rules
in order to avoid bugs(there were cases when a change that
I knew that it should be productive was not profuctive
because of a bug).

Every test takes time because I use the GCP test suite
at 5 minutes per position so the test takes 15 hours.

I may also try the quick test suite because I remember that I read
that there is no problem of finding the right move for
the wrong reason in that test.


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