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Subject: Re: What's optimal hashtable size for different time controls?

Author: Jason Williamson

Date: 20:17:58 04/15/00

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On April 15, 2000 at 18:28:48, Marcos Christensen wrote:

>On April 15, 2000 at 17:58:01, Robert Hyatt wrote:
>
>>On April 15, 2000 at 17:14:56, Borges wrote:
>>
>>>On April 15, 2000 at 16:18:04, Christophe Theron wrote:
>>>
>>>>On April 15, 2000 at 15:56:18, Borges wrote:
>>>>
>>>>>On April 15, 2000 at 12:44:40, Christophe Theron wrote:
>>>>>  Hi Christophe!
>>>>> I ran an account in ICC, and was able to get more than 3000 points, with no
>>>>>special hardware. The interesting is that it rans with default settings. It
>>>>>appers no coincidence that when i put NSEW=1 and MoreSel=1 tiger became weak
>>>>>(IMHO). The hashtable I have to set up with 32M in 3 0 games and 64M in 5 0
>>>>>games, less than this will result in odd endgames, when tiger sometimes put away
>>>>>a victory.
>>>>
>>>>
>>>>You should really check this carefully. Using 32Mb in 3 0 games kills the
>>>>playing strength, I'm sure about this.
>>>>
>>>>
>>>>    Christophe
>>>
>>>  Actually I prefer to play with 3 0 time controls, I think that the best
>>>evaluation of Chess Tiger makes the difference. It (or he) appears to smokes
>>>everybody. The contempt value, that is useful, to clean a closed position set to
>>>-15 or -20 is helpful. The only colateral effect of this is probably being
>>>noplayed by crafty ;-) But a BOOK editor will make  difference.
>>>  Congratulation for your program, probably better than you think (intended to
>>>be a joke).
>>>                     Borges
>>>
>>
>>The only way to get noplayed by crafty is to not read the finger notes.  If
>>you can read, you can play it.  Feel free.  If you can't read, then you will
>>likely get noplayed.
>>
>>But it will have _nothing_ to do with your contempt factor or whatever...
>
>  My grandmother used to say: if you cannot stand the heat get out of the
>kitchen, or, write fi notes. At least singacrafty and data are less greedy about
>rating points.
>
>             Best wishes
>                         Borges

What does rating points have to do with developing a chess engine?  Dr. Hyatt
works on a strong freeware engine.  He doesn't need 400 differnt Rebel Tiger
clones playing Crafty all day long taking time away from other possible players.
 Variation in style is probably more important then 50 games in a day against
Rebel Tiger.  Having said this, I also personally think that due to the ease of
setting up rebel online, the ICC should start limiting the accounts given to
that engine like the limits puts on Crafty and Gnuchess.

Jason



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