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Subject: Re: Rebel's anti-GM option

Author: blass uri

Date: 07:27:58 06/23/98

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On June 23, 1998 at 09:53:47, Ed Schröder wrote:

>>Posted by blass uri on June 23, 1998 at 08:43:37:
>
>>In Reply to: Rebel's anti-GM option posted by Ed Schröder on June 23, 1998
>>at 06:02:01:
>
>>On June 23, 1998 at 06:02:01, Ed Schröder wrote:
>
>>>For those who are interested (also got some questions about it) I updated
>>>my pages with a description and an example how Rebel will play next month
>>>against Anand using a special anti-GM option.
>
>>>The info is on 2 pages:
>
>>>http://www.rebel.nl
>
>>>Then from the main menu take the first 2 links from the NEWS section.
>
>>>- Ed -
>
>>I read the info and I have some questions:
>
>>The anti-GM option scores better.
>>can you tell us the score with the anti-GM option and without it?
>>what was the rate of the games(40 moves for 2 hours or faster)
>>did you try to do a match between Rebel10 with the anti-GM option
>>and Rebel10 without the anti-GM option and if the answer is yes then what
>>was the result.
>
>I can't provide exact figures yet. At the moment the new book for Rebel10
>is tested which is pretty time consuming this in respect that a first
>version of a new book is always full of the usual glitches and so several
>updates are necessary before you again have a good and better opening
>book. If the Rebel10 book is okay I will place the testing results on my
>home page again.
>
>For the moment I can only rely on the games I have played with the Rebel9
>book and the Rebel10 anti-GM option. These are simply better than without
>the anti-GM option. Too less games are played to justify a special page
>for this now. However this is of course just a matter of time.
>
>>your opinion is to set the anti-GM option OFF if I want accurate analysis
>>if the anti-GM option is better I do not understand why to do it.
>
>I can't tell too much at the moment, perhaps Vishy is reading CCC too :)
>
>All ok after the match but for now I must be a bit careful. However I can
>safely say that the goal of a Rebel engine is to give an accurate as
>possible main variation and score as defined in the evaluation function
>of the program.
>
>The anti-GM option (at least in my view) makes Rebel's returned analysis
>(main variation, score) and moves a bit less accurate due to the let's
>say "anti-GM values" which are added to the score. This with as only goal
>to confuse strong GM's.
>
>If you are not a GM turn the anti-GM option off :))
>
>>I understand Rebel10 without the anti-GM option can miss good ideas
>>because it needs to know the idea is 100% correct and to smell the attack
>>is not enough for it.
>
>No that is not the case. Perhaps my description on my home page about this
>is a bit unclear. I will take another look at it.

your descreption in your homepage:
"In Other words Rebel(using anti-GM) does not need to know the sacrifice
is 100% correct for this position, Rebel smells the chance of an attack
and goes for it"
the example shows Rebel10(not using anti-GM) can miss Rxe6
assuming I do not have a long time
Uri

>
>- Ed -
>
>
>
>>Uri



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