Author: Antonio Dieguez
Date: 17:29:50 11/26/02
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On November 26, 2002 at 19:27:01, David Rasmussen wrote: >On November 26, 2002 at 18:29:35, Antonio Dieguez wrote: > >> >>>I takes 43 seconds to finish ply 1! >>>As it can be seen from the output, there aren't any extensions going on here. >>>But the longest q-search line is to ply 17! >>>There's definitely something wrong here... :) >> >>you may have a bug (probably), but anyway, you can cut the qsearch captures at >>some point, 7-8-10 plies. I cut it at 8 and wonder if there are an example in >>wich that hurts anything. >> >>be fine. > >What is the reasoning behind this? If I just stop at some arbitrary place, the >in the middle of a 10 piece capture sequence, I return a totally wrong score. I >mean if there is a capture sequence of 9 ply, and you stop at 8, it might be >when white have just taken blacks queen, and you return +9, when in fact, if the >position is reached, black will just recapture whites queen. > >I don't understand how this can work, unless some extra care is taken. well, to have a chance to hurt, not only there must be a capture sequence of 9 plies, but those captures must be somewhat reasonable. Anyway, if you want, cut it at 9 then... but definitely 16 is not needed. Unless you have a qsearch hashing issue and you manage to make your qsearch small anyway and whatever. I just know i know nothing, just coming by here writing at the computer chess club before going to bed to dream with many girlfriends. be well.
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