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Subject: Re: Is the Depth directly proportional to the program's strength? (YES!)

Author: Sune Fischer

Date: 07:15:59 02/07/02

Go up one level in this thread


On February 07, 2002 at 10:06:21, Dann Corbit wrote:

>On February 07, 2002 at 05:05:50, Uri Blass wrote:
>
>>On February 07, 2002 at 04:44:18, Tony Werten wrote:
>>
>>>On February 06, 2002 at 20:48:26, Sune Fischer wrote:
>>>
>>>>On February 06, 2002 at 20:33:51, Dann Corbit wrote:
>>>>
>>>>>If there are diminishing returns, one would expect that doubling CPU power would
>>>>>not continue to give linear ELO increase, since ELO is also an exponential
>>>>>scale.
>>>>>
>>>>>Seems like a testable proposition.
>>>>
>>>>Hmm now I'm curious, it will have to make some tests when my engine is up and
>>>>running again.
>>>>I do believe a 4 vs. 3 plier will win 70-80% and that this is less with a 9 vs
>>>>10 plier.
>>>
>>>While your busy, could you check wether 8-6 gives the same score as 4-3 ? I
>>>actually expect a few percent lower, wich would really prove diminishing
>>>returns. (IMO)
>>>
>>>Tony
>>
>>
>>I believe that 8-6 gives better score for the stronger side relative to
>>4-3 in chess.
>
>The previous studies also showed that.  The real question is whether 16-18 plies
>has less benefit compared to 18-20 plies.  The reason I say that would be
>obvious if you look at the graphs of the studies.

I think any effect out there will be hard to measure, the curve is just too
straight.
Compare 2-3 to 15-16 and I'm sure you will see the effect clearly.

-S.



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