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Subject: Re: CEGT Blitz Update December 12....New Leader

Author: Chessfun

Date: 16:27:47 12/12/05

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On December 12, 2005 at 19:23:26, Albert Silver wrote:

>On December 12, 2005 at 19:21:04, Chessfun wrote:
>
>>On December 12, 2005 at 19:09:32, Uri Blass wrote:
>>
>>>On December 12, 2005 at 18:29:26, Chessfun wrote:
>>>
>>>>CEGT Blitz Rating List updated:
>>>>
>>>>BLITZ:
>>>>http://www.husvankempen.de/nunn/
>>>>
>>>>8 New engines added:
>>>>
>>>>Rybka 1.0 Beta 64-bit
>>>>Chess Tiger 2004 Normal
>>>
>>>It seems that chess tiger 2004 normal played 120 games out of 520 games against
>>>ktulu7.1
>>>
>>>I think that when one engine play so many games against single opponent the
>>>rating may be misleading because it is possible that one program has good result
>>>against specific opponent.
>>>
>>>I suggest that you reduce the number of all games between 2 opponents to 30
>>>games for rating calculation and it means that tiger2004 got 14.75 out of 30
>>>against ktulu7.1 and not 59 out of 120 against it because you should not let one
>>>player to decide about the rating list because by this idea if you play 1000
>>>games between Fritz9 and TogaII1.0 and Fritz9 scores less than 45% you can tell
>>>fritz9 to go down in the list and togaII1.0 to fight for the first place.
>>>
>>>Of course if there is data about more games I do not say not to use it but you
>>>should use it only to get better estimate for the result in 30 games.
>>>
>>>
>>>Tiger also played only against 6 opponents so I think that for calculation you
>>>should assume that it played 180 games by reducing the number of games of it
>>>against every opponent to 30 and 180<300.
>>>
>>>Uri
>>
>>
>>I don't agree. Testing of Chess Tiger 2004 Normal is limted in that only a
>>couple of CEGT testers have it. It was agreed to run 80 games per engine match
>>however there was a mistake regarding Ktulu 7.1.
>>
>>Testing of Chess Tiger 2004 Normal is also limited in that it only runs in the
>>Chess Partner interface and therefore the variety of engines to play against
>>isn't so great.
>>
>>Further the method of testing within Chess Partner don't allow easy use of match
>>play gauntlets as Chessbase GUI's do.
>>
>>Last assuming it will end up playing some 1500 games ultimately it's rating may
>>get a bit skewed at the beginning.
>>
>>Sarah.
>
>What are the openings settings? Do they use a specific set of opening positions
>à la Nunn, or do they use their own books? If so, what books do the bookless
>engines use?
>
>                                            Albert


All use generic books in the case of Chess Tiger 2004 Normal I believe they were
tested using the Harry Schnapp testsuite.

Sarah.



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