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Subject: Re: Knee jerk reaction!

Author: George Tsavdaris

Date: 14:55:44 09/03/04

Go up one level in this thread


On September 03, 2004 at 17:00:43, Robert Hyatt wrote:

>On September 03, 2004 at 16:01:45, Graham Banks wrote:
>
>>On September 03, 2004 at 15:37:40, Robert Hyatt wrote:
>>
>>>On September 03, 2004 at 15:07:17, Graham Banks wrote:
>>>
>>>>On September 03, 2004 at 13:17:51, robert flesher wrote:
>>>>
>>>>>If you are going to waste your precious time and everyone else here then  please
>>>>>indicate that you have given unfair advantages to certain engines.
>>>>
>>>>
>>>>I think people should read the setup details and maybe look through the whole
>>>>range of games before going off half cocked!
>>>>All engines are using the Fritz powerbook tournament settings. There is the odd
>>>>strange opening due to the maximum variety setting used, but I think you'll find
>>>>that this has equally affected all engines and that no particular engine has
>>>>been disadvantaged.
>>>>For the final of the tournament I intend to optimise the powerbook settings, so
>>>>this should eliminate any unusual openings.
>>>>Graham.
>>>
>>>
>>>In other words, you are "flipping a coin" to see who wins in the early rounds?
>>>
>>>That is _exactly_ what is happening.  And to say "it averages out" shows a lack
>>>of statistical understanding.  If you play an _infinite_ number of games, it
>>>_might_ average out, assuming the programs all select openings the same way.
>>>
>>>This does make very little sense...
>>
>>
>>
>>Hi Bob,
>>in a limited Swiss, I'd agree. In a round robin over 76 rounds, I don't.
>>Regards, Graham.
>
>
>So if I flip a coin 10,000 times, you don't think there will be any point where
>there are 76 consecutive heads or tails???

 That's a bad example. The case you're refering has a probability of
1,3ยท10^-17 % (Tooooo small), while in the case of openings Deep Sjeng for
example would possibly have at the best case 2-3 times a bad opening at 76
rounds while Comet in the worst case 6-7. So it's not so big difference between
the advantage of Sjeng against Comet.
 Although i agree that moves like 1.a4? 1.Nh3? should be avoided in matches
between the top engines.

>
>more rounds is better.  76 is nowhere near enough.
>
>But run the event however you want.  Such openings simply don't make any sense
>to me since no "normal" program will _ever_ play them in a serious game...



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