Author: Inmann Werner
Date: 09:58:10 03/24/99
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On March 24, 1999 at 12:27:28, Andrew Dados wrote: > >On March 24, 1999 at 12:13:03, Bruce Moreland wrote: > >> >>On March 24, 1999 at 09:30:19, Inmann Werner wrote: >> >>>Hello. >>> >>>My question sure is a little dumb, but anyway.... >>> >>>When in Qsearch a check occurs, and the opponent can not come out of the check >>>(cause he only tries capture moves!) a position is evaluated to be mate, >>>although this is not right. >>>I am worried about this, but looking at the play of my program, it seems to >>>never occur. >>>In normal search, when a check comes, I extend. I also extend on the way to the >>>Qsearch. But if I am really in Qsearch I seem to ignore the problem. >>> >>>Is it a problem or am I seeing Ghosts? >>> >>>Werner >> >>In the classic Ken Thompson quiescent search, you call "search" from "quies" if >>you are in check, so weird stuff like this is prevented. >> >>You have a bug. Think alos so. >> >>The reason it is not making your program suck is that you can have a fairly >>broken quiescent search and still play decent chess, and in fact breaking your >>quiescent search a little might make it play better. > > If it plays better it's an 'improvement', not a 'bug' :)) That must be tested, and this I will do now! >-Andrew- >> >>bruce
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