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Subject: Re: Kramer Vs Kramer (Yace + Book against Yace + No Book = 13.5 - 6.5)

Author: Aaron Tay

Date: 23:10:25 08/30/02

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On August 30, 2002 at 18:28:57, Mogens Larsen wrote:

>On August 30, 2002 at 18:01:02, Dann Corbit wrote:
>
>>I have no idea why it turns out this way, because I should expect that the book
>>would matter more when you cannot think about the right move very long, since
>>the book moves should be pretty good, at least.
>
>Maybe because there's a better chance of finding bookmoves, good or bad, for the
>bookless engine, thereby increasing the probability of following a flawed line
>(and a larger time difference). In fast games the odds of odd moves are higher
>and a increased likelihood of both engines being out of book early. That's my
>estimation anyway.

I agree. You can find out if games stay in book longer with longer time controls
if you keep an average of the number of book moves that the engine stays in
book. It depends on the engine also. I have the impression Crafty finds book
moves better than Yace at the same time control. And The King is also pretty
good.

Of course if this trend holds it may imply that autogenerated ametuer books
might even be weaker than no books when faced against Professional books, since
the autogenerated books will stay in book longer with greater chances of falling
into a trap!

Aaron







But this


>Regards,
>Mogens



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