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Subject: Re: Shredder 9 UCI - First Impressions

Author: Stefan Meyer-Kahlen

Date: 00:57:36 02/09/05

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On February 07, 2005 at 17:04:22, James C. Logan wrote:

>In the "infinite analysis" mode under Fritz 8 interface (version 19), as well as
>the Chessbase 9 interface (version 5), Shredder 9 seems to get very deep, very
>fast. Faster than Shredder 8. I do not look at nodes/sec, only the depth. I have
>not found an instance yet where the two programs differ in the suggested top
>move, but I am not looking too hard yet. I also have not looked over the PV yet
>to see if I like it better than S8.
>
>As for games, I have tried a quick informal run in Arena 1.1 of Shredder 9 vs.
>Shredder 8. Naturally, under this interface, I cannot use Shredder books. I
>played 21 games of Game/3 minute and Shredder 8 trounced Shredder 9. I moved the
>time control up to Game/5, and a small number of games also went to Shredder 8.
>I am now going to try using the Shredder interface - I will do a more controlled
>experiment overnight.
>
>I can say that in all that I have seen, Shredder 8 uses the clock more
>effectively than Shredder 9. Maybe that is an unfair statement, but S9 is always
>behind on the clock compared to S8, winning or losing.
>
>These are only first impressions - don't take them too seriously yet.


Thanks for your impressions.

If you think that Shredder 9 is playing to slow you can set the engine option
"Time Usage" to a value < 100. The value is given in percent, so if you set it
to 90 Shredder will on average think 10% less for his moves.

Stefan





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