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Subject: Re: WinBoard version of Queen now downloadable

Author: Dann Corbit

Date: 11:02:56 01/16/01

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On January 16, 2001 at 05:15:43, José Carlos wrote:

>On January 15, 2001 at 14:32:41, Dann Corbit wrote:
>
>>On January 15, 2001 at 02:19:54, Leen Ammeraal wrote:
>>
>>>Thanks, it is now very clear to me that
>>>this time control aspect badly needs
>>>improvement.
>>
>>Time control is very important, but you will find that the strongest programs
>>use a lot of time early to gain a superior position.  Don't try to even it out
>>or something like that or you'll be sorry.
>
>  I may be wrong about this, but I'm pretty sure this wouldn't work in my
>program. This is my reasoning:
>  Not being a null-mover, my program takes a lot of time to go a ply deeper in
>the early midgame, so if I let the program use more time there, I'd probably end
>up searching an extra ply in one position and consuming a lot of time, so that I
>can't use "extra time" for any other position.
>  The way I do right now, I try to get to a reasonable ply early in the game,
>and use the extra time in the endgame, when a few seconds can give me some extra
>plies.
>  Don't know if this makes sense, after all...
>
>  José C.
>
>>Look at the time controls for some very good programs and you will see what I am
>>talking about.  For Gromit (for instance) one big improvement between version 3
>>and version 2 is better time management.

If you have a nice, fat hash table and you guess the opponent's move reasonably
often, using time up front is not so expensive, since you get it back on
subsequent searches.



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