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Subject: Re: SSDF(Crafty 17.07 - Fritz 6)AMD K6-2 450, 2-1, 14.5-18.5

Author: Robert Hyatt

Date: 06:52:43 05/02/00

Go up one level in this thread


On May 02, 2000 at 02:07:09, blass uri wrote:

>On May 01, 2000 at 18:46:20, Robert Hyatt wrote:
>
>>On May 01, 2000 at 14:38:22, Alexander Kure wrote:
>>
>>>On April 30, 2000 at 20:02:03, Robert Hyatt wrote:
>>>
>>>>On April 30, 2000 at 19:32:41, Chris Taylor wrote:
>>>>
>>>>>Here, at a longer time control, and on two comps!  Crafty does, OK.....?
>>>>>
>>>>>Or, should I say, "Is doing, not too badly"(!!!!!!)
>>>>>
>>>>>Looking forward to the next version!
>>>>>
>>>>>Chris Taylor........
>>>>
>>>>
>>>>14.5-18.5 is not horrible.  Take the two book losses, turn them around and
>>>>the match is dead even.  Or make them draws and it is 15.5-17.5, which is
>>>>nearly equal.
>>>>
>>>>I'd rather see 20-0 of course, but that isn't realistic, unless a big SMP box
>>>>is used for crafty.
>>>
>>>Hi Bob,
>>>
>>>Actually, there has been only _one_ book loss so far in this match (game 17),
>>>where unfortunately Crafty was on the loosing side.
>>>As both programs play with the same book (general.ctg from Fritz 6) as i found
>>>out now after a little research, chances of so called book losses are equally
>>>shared between them ;-)
>>>
>>>Greetings
>>>Alex
>>
>>
>>I was going by Tony's comments.  He said -1.4 in one book line, -2.5 in another
>>one.  I didn't look very carefully at either.  And I don't worry about them as
>>I see them with my book just as often, although I don't know whether it learns
>>to not play them again, when running in the Fritz GUI.  IE book learning most
>>probably is not working...
>
>I think that book learning is working for all the chessbase engines in the same
>way(Fritz's engines try to repeat opening that they won and avoid opening that
>they lost).
>
>Uri


That is possible.  But it is not _my_ book learning algorithm.  IE I use a lot
of the search results to update the book to favor/avoid lines that even though
I won the game, the first 10 moves out of book saw a negative score...



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