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Subject: Re: Shredder-Toga II with the fruit book or what a difference a book makes ?

Author: Majd Al-Ansari

Date: 23:08:19 08/24/05

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On August 25, 2005 at 01:20:50, Kurt Utzinger wrote:

>On August 24, 2005 at 18:11:48, Thomas Logan wrote:
>
>>Toga playing with df8.ctg was not competative
>>
>>Toga playing with fruit.ctg has won the first two games
>>
>>time control 40/40 128 meg hash
>>
>>Tom
>
>
>      Hi Tom
>      You surely know that fruit.ctg is not the
>      original book for Fruit 2.1 and to find out
>      which is the best book for an engine you
>      must play some hundred games vs engine X
>      and Engine Y and so on. A very time conscuming
>      matter. For such tests it will be best to
>      use blitz level 10m+2s (or something similar)
>      to get fast a first impression. But I can
>      assure you, you need at least some hundred games
>      to compensate for the many variations in the books.
>      Kurt [http://www.utzingerk.com]


This is especially true in Fruit.  In my experimentation Fruit is extremely
sensitive to which book it uses.  It has evaluations that are very different
from other engines so if you force it to be in a position out of the opening
that it doesn't like, it plays poorly.  A good book will soon come out for Fruit
although I am not aware of the best one.



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