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Subject: Re: A plea to all computer chess enthusiasts (short)

Author: Uri Blass

Date: 11:47:21 02/09/06

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On February 09, 2006 at 14:24:49, Dann Corbit wrote:

>On February 09, 2006 at 14:22:03, Uri Blass wrote:
>
>>On February 09, 2006 at 14:08:31, Dann Corbit wrote:
>>
>>>On February 08, 2006 at 22:17:11, Will Singleton wrote:
>>>
>>>>>The very rapid
>>>>>improvement in the general level of strength isn't a recent
>>>>>development; it has been going on for several years.  The gap
>>>>>between the new and improving programs and the established
>>>>>professionals has been constantly diminishing, and it has long
>>>>>been clear that it was only a matter of time before some of the
>>>>>new engines would surpass the old giants.
>>>>
>>>>Uh huh.  It might have long been clear to you, but was that before Fruit or
>>>>after?  I recall when Ruffian came out, people could scarcely believe its
>>>>strength.  No one, folks said, could develop such a strong amateur program in
>>>>relative secrecy, and then just burst on the scene.  But Ruffian never
>>>>approached commercial strength.
>>>>
>>>>And then came Fruit.  Not an evolutionary change, not forseen, not anticipated.
>>>>One day the commercials ruled, then Fruit came out.  That was the change.  Only
>>>>after that did programs begin to "surpass the old giants."  I'm not criticizing,
>>>>only pointing out that the change was sudden, not evolutionary, and no one
>>>>predicted it.
>>>>
>>>>Unless, as you say, you did.  Where was that post?
>>>
>>>Junior and Chess Tiger were just like Fruit.  It's just history repeating
>>>itself.  And it is going to happen again and again
>>
>>No
>>Fruit was free source code.
>>Junior and chess tiger were not free source code.
>>
>>It is not history repeating and you can see big advance in copmputer chess after
>>fruit2.1
>>
>>In less than a year from fruit2.1's release we already got 100 elo improvement
>>only in software relative to shredder9 even if we only look at the 32 bit
>>version of rybka.
>>
>>When did it happen in the last 10 years?
>>
>>I think that in the last 10 years there was never improvement of 100 elo
>>relative to previous best program.
>>
>>3 Rybka 1.01 Beta 13-13b 32-bit 2870 28 28 488 74.0 % 2689 27.5 %
>>14 Shredder 9 2753 8 8 4805 63.2 % 2659 31.9 %
>>
>>Note that we can expect Rybka1.2 to be even stronger so we probably get
>>improvement of more than 150 elo in the last year.
>>
>>I think that it never happened in the last 10 years and maybe never happened in
>>the past.
>
>I guess that when programs went from Mini-max to Alpha-Beta, the improvement was
>at least 200 Elo on average.

This was a long time ago and it is easier to make an improvement when the level
is weaker.

I did not follow improvement in computer chess not in the last 10 year but I do
not remember big improvement like the improvement in the last year when you
compare programs on the hardware that people use.

Note that most people do not use 2 processors so it is logical to make
comparison of performance on the hardware that is used.

Uri



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