Author: Uri Blass
Date: 10:41:00 01/11/02
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On January 11, 2002 at 13:15:26, David Rasmussen wrote: >On January 11, 2002 at 12:47:32, Matthias Gemuh wrote: > >> >>How good is your move ordering? >>Maybe that is the problem. > >In this position, 99%. I am pretty sure extensions are the problem, as my >statistics show that I extend (in the longest line) to ply 62! > >But as far as I understand, my extensions are similar to everybody elses. So I >don't understand the behavior. > >/David I do not understand simple rules of fail high should tell you that if the score is a mate score [suppose the score is 9991 that means mate in 5 in my program (I should increase this number because of the not practical case of 9 queens +2 rooks+2 bishops+2 knights that can produce 103 score based on only material values)] It means that in the next search I am going to use alpha=9991 because it is clear that the score cannot be lower than 9991 and lines of 62 plies are going to be pruned after 10 plies. My program does not search after mate but when it will know to search after mate then it is not going to search for lines that are too long. Uri
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