Author: Robert Hyatt
Date: 20:48:27 10/17/02
Go up one level in this thread
On October 17, 2002 at 19:57:41, Uri Blass wrote: >On October 17, 2002 at 18:12:02, Robert Hyatt wrote: > >>On October 17, 2002 at 16:34:08, Murray wrote: >> >>>On October 17, 2002 at 10:07:41, ujecrh wrote: >>> >>>>(snip) >>>>We can track opponent's thinking time and, without trying to match it, add some >>>>time or search extensions when an unusual delay has occured. >>>> >>> >>>But humans also ponder when the computer is thinking. It could be argued that if >>>the human is having to spend a long time thinking in a difficult position, the >>>computer should play just as quickly or quicker than normal, to reduce the >>>human's chance of seeing through the complications. >>> >>>Murray Cash >> >> >>If the computer had any _idea_ about what makes up a complex/hard-to-analyze >>position, >>this would be a good plan. But it doesn't have a clue about whether the >>opponent has an >>easy or difficult position to play, and trying to play games with time usage >>will more often >>than not blow up in your face.... > >The computer may ponder about all the possible moves but use different time for >different moves(I remember that I read that this idea is used by aristarch). > >If based on the scores it can see that there is a forced move it can give it >almost all of the time but if it see 5 moves with almost the same score it can >continue to analyze them and use almost 1/5 of the time for everyone of them. This idea is simply no good. I have explained why a dozen times or two, over the past 10 years... It doesn't work now. It didn't work 20 years ago. It won't work 20 years from now either. The _best_ way to ponder is to pick the best move and go with it, unless the program is so bad it can't predict right even 50% of the time, which is very low... > >If the opponent use 30 minutes for his move when the average time is 3 minute >per move and the computer used 5 minutes to ponder about the move that was >played then the computer may reply in 0 seconds. > > >Uri
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