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Subject: Re: How to evaluate KQ vs KR?

Author: Vasik Rajlich

Date: 02:11:53 05/05/04

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On May 04, 2004 at 12:40:09, Tord Romstad wrote:

>On May 04, 2004 at 12:15:34, Anthony Cozzie wrote:
>
>>On May 04, 2004 at 11:43:17, Tord Romstad wrote:
>>
>>>On May 04, 2004 at 10:57:34, Tony Werten wrote:
>>>
>>>>You forgot 1 more: Use tablebases ....
>>>
>>>No, they are too big.  The KQKR tablebases alone consume more than 1 MB.
>>>:-(
>>>
>>
>>Almost .0002% of my hard disk space!
>
>... and more than 20% of the unused space on my Palm.  :-)
>
>But in fact, I prefer not to use TBs even at the PC, for aesthetical
>reasons.  Using more than 1 MB of disk space just in order to play KQKR
>endgames perfectly is really ugly.

Of course same could be said for alpha-beta, and searching 20 million positions
just to move a rook to an open file. (Ok, 5 million for Gothmog.)

Vas

>  The TB code in itself is also a
>problem, because it almost doubles the size of my executable.  I can
>accept to double the size of my executable if it gives me 200 Elo points
>for free, but not if I only get 20 Elo points.  The complete 5-piece TBs
>almost certainly give me *less* than 20 Elo points, and are therefore
>definitely not worth the cost.
>
>The next version of my engine will probably no longer include tablebase
>support.
>
>Tord



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