Author: Robert Hyatt
Date: 11:01:40 10/07/99
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On October 07, 1999 at 13:48:56, Scott Gasch wrote: > >Hi, > >I have a old DEC that I ported my engine to (kinda just to see if it would port >nicely). Anyway, when it plays there it gets only about 1500 nps... > >On fast hardware I am able to draw (and sometimes beat) gnuchess. When I lose >it is at least hard fought. On the DEC, though, where searches rarely get past >4 ply, gnuchess _kills_ me. > >I suppose this is because of superior move ordering in gnuchess (such that the >first move it considers is more likely to be a good move?). But I am >considering moves in what I think is a good order... Does anyone have an >alternate explaination? > >I ask because it occurs to me that if I can improve the code so that it is >competitive with gnuchess on the slow machine, it will improve on faster >machines too... > >Thanks again, >Scott Did you compile the NULL_MOVE option into gnuchess? If not, slower speeds favor a non-null program as at depths of 3-4-5, null-move will hide almost all subtle tactics and get you into massive trouble...
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