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Subject: Re: The importance of opening books -- a simple experiment

Author: José Carlos

Date: 06:09:13 02/18/05

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On February 17, 2005 at 14:48:05, Djordje Vidanovic wrote:

>Hello Tord,
>
>nice experiment.  However, I'd like to add that Vincent was actually making a
>hyperbole (a way of emphasizing what you are saying by describing it as far more
>extreme than it really is.... as the definition goes, of course), and did not
>actually mean it literally.
>
>You took him literally, probably tongue in cheek.  I will now seriously claim
>that a good book COULD be worth anywhere from 100 points (conservative
>guesstimate) to 250 points (very liberal guesstimate).  The range depends
>entirely on the type of position that ensues and the time controls.  In very
>fast games (G/3, G/5) I claim that the worth of a book is even higher because
>the engine you are running is as good as done in after coming out of book with
>an inferior position.  This is based on my personal experience with Shredder on
>playchess.com and on about 15,000 fast blitz games. So, I am not making a
>hyperbole and am claiming that a book just might be worth about 250 elo points.
>
>Djordje

  Sounds reasonable to me, but it's would be nice to back it up with a little
experiment. So far, though my intuition tells me a good book can be 100 elo, I
haven't seen a test match to support it.
  It'd be nice to have such experiment. First we need to define what we want to
compare. For example: Fritz x with own book (and no learning?) vs Fritx x
without any book or learning, removing duplicate games, up to 100 different
games. Or maybe a better test would be vs Fritz x with a random and small book?

  José C.



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