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Subject: Re: Observations on Fruit 2.2.1

Author: stuart taylor

Date: 14:06:21 11/12/05

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On November 12, 2005 at 16:44:38, Timothy J. Frohlick wrote:

>When autoplaying Fruit 2.2.1 vs Shredder 8 on my 1.5 Ghz AMD 512 MB machine and
>alloting 64 MB RAM for 4 minute Blitz chess, I noticed that Fruit 2.2.1 scores
>about 50 elo points stronger than Shredder 8 when it uses its own Book.bin 1.4
>MB opening book vs the Shredder's native Shredder8.ctg opening book. On the
>other hand, Fruit 2.2.1 scores 50 elo points weaker than Shredder 8 when both
>programs use the Shredder 8 opening book.
>
>I am sure that Fruit is an excellent program and has a slightly different
>playing style than Shredder with often differing evaluation scores. I also
>notice that Fruit 2.2.1 is doing 50% more node searches than Shredder 8 on the
>same processor with pondering off. I assume that Fruit 2.2.1 is using more
>refined knowledge-based algorithms than Shredder 8. Nevertheless, the fact that
>Fruit 2.2.1 does better with its own book suggests than book tuning is in
>effect.

And also HAS an effect!
So I would say that the stronger machine should be stronger, even with NO
opening book. (I wouldn't insist that every machine should use a worse opening
book, or one that is better suited to a different engine.) Then, it's OK if
opening book makes it even better.
So what happens if Shredder 8 uses Fruit 2.2.1 opening book?
S.Taylor

>
>I am impressed with Fruit 2.2.1 and would pay twenty dollars more for Fritz 9 if
>Fruit 2.2.1 was included as a secondary engine. I may pay the $33.xx USD fee
>within the next 13 days if Chessbase doesn't include Fruit 2.2.1 with Fritz 9.
>
>Sincerely,
>
>Uncle Timbo
>
>PS If Lucien could sell 100,000 copies at an extra $10.00-$15.00 USD profit from
>his program bundled with Fritz 9 the guy could have a cool $1,000,000.00 USD
>within one year. He could then retire to a tropical island like that fellow
>Christophe Theron. Perhaps he could even buy a Jaguar.



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