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Subject: Re: Recapture Extension

Author: Robert Hyatt

Date: 19:23:33 01/09/02

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On January 09, 2002 at 17:18:24, Vincent Diepeveen wrote:

>On January 09, 2002 at 17:12:23, Bas Hamstra wrote:
>
>>On January 09, 2002 at 15:17:36, Robert Hyatt wrote:
>>
>>>On January 09, 2002 at 12:58:18, Ulrich Tuerke wrote:
>>>
>>>>On January 09, 2002 at 12:45:27, Robert Hyatt wrote:
>>>>
>>>>>On January 09, 2002 at 10:15:53, David Rasmussen wrote:
>>>>>
>>>>>>Some time ago we talked about the recapture extension. Bob's experiments with
>>>>>>Crafty seemed to show that recapture extension was a bad idea at least for his
>>>>>>program.
>>>>>>
>>>>>>How many people have the recapture extension because they positively believe
>>>>>>that it is better for their program, and how many has removed it from their
>>>>>>program because the positively believe that it is bad for their program?
>>>>>>
>>>>>>I am sure a lot of people have it or don't have it, but for no specific reason,
>>>>>>that is, they have not tested the effect of this extension thoroughly.
>>>>>>
>>>>>>/David
>>>>>
>>>>>
>>>>>Note that I still use it.  It definitely slows things down at times, but
>>>>>allowing my opponent to burn two plies "at will" by making a capture that I
>>>>>have to reply to seems dangerous to ignore...
>>>>
>>>>So, you prefer following your intuition, though it is not in complete accordance
>>>>with the statistics of the experiment which you have done once (IIRC) ?
>>>>
>>>>Uli
>>>
>>>
>>>yep...
>>>
>>>:)
>>
>>Same goes for me. I don't know what the outcome of this experiment was, but for
>>me leaving it in seems to "break even". It solves a few tactics extra and misses
>>a few others. I have always had doubts if it really effectively reduces horizon
>>effects in games.
>>
>>Bas.
>
>In that case i assume you threw it out, in order to get another ply more?


For me turning it off or on doesn't come _anywhere_ near another ply...




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