Author: Vincent Diepeveen
Date: 19:10:30 01/10/02
Go up one level in this thread
On January 09, 2002 at 22:23:33, Robert Hyatt wrote: >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... Amazing! perhaps crafty uses really *too* much nodes a ply to feel these extensions.
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