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Subject: Re: Should an engine using SEE beat another not using it?

Author: Peter Fendrich

Date: 12:12:07 01/27/01

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On January 27, 2001 at 14:30:18, Severi Salminen wrote:

>Hi!
>
>I made a few test games between a version of my engine using SEE and another
>using just MVV sorting. I played only a few (24) games and time control was
>5min/G and in 8 games 1min/G. The result was 12-12! Is this possible, normal, or
>do I have a bug? I would have guessed that the SEE version had beat the hell out
>of the other but that never happened. It seems that SEE slows things down a lot
>and the net result seems to be that it searches equally deep compared to the
>other version. Has anyone here measured the true benefit of using SEE? Could you
>show me positions in which SEE makes a big difference or could you run self-test
>games between two versions of your program? Are there positions where SEE hurts
>searching? I really like to know if SEE is worth it? I have a relatively slow
>computer (300Mhz Celeron, Crafty running at 80KNPS) so could time control and
>overall speed have influence on this?
>
>Any comments are welcome!
>
>Severi

If I play my program (Terra) with and without SEE against each other, the former
wins quite comfortable. From my own experience matches of this kind (with the
same program) gives exaggerated differences but I'm convinced that SEE is worth
trying.
//Peter



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