Author: Alessandro Damiani
Date: 03:08:17 10/10/99
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On October 10, 1999 at 03:14:10, Ed Schröder wrote: >PB-ON vs PB-OFF (results experiment-1) > >To enrich the discussion about the value of the "Permanent Brain" (PB) I >have started 2 experiments with Rebel Century (RC) which will give some >data for a better judgement. > >Experiment-1: >RC (PB=ON) vs RC (PB=OFF) >100 auto232 games >Time control: 60 secs average. >Hardware: 4xPII-266 + 2xPII-450 >Result: 61-39 > >Experiment-2: >RC (PB=ON) vs RC (PB=OFF) >100 auto232 games >Time control: RC (PB=ON) 30 sec average >Time control: RC (PB=OFF) 60 sec average >Hardware: 4xPII-266 + 2xPII-450 >Status: in progress > >Ed Schroder I think the advantage of PB depends on what one does with time won: 1) save time for the next moves if the opponent made the expected move, or 2) spend the saved time to search deeper In Fortress I do the latter, although I have to tune it. The danger is that a new iteration takes too much time, while the previous ones came from the hashtable. I guess the 2nd method gives more ELO points than the 1st (deeper search is better now than in the next moves). Alessandro
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