Author: Georg v. Zimmermann
Date: 17:51:56 04/16/00
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>> idea of Killermoves is outdated and almost everyone only uses History today. >>Is that correct ? > >No it isn't. Technically history moves provide everything killer moves >provide, and then some. But a plus for killers is that you can try them >before generating any moves, and if you get a cutoff due to the killer, you >avoid the move generation completely. History doesn't let you do this as >the data structure doesn't contain moves... > This is interesting! I didn't think about that. The program I'm working on right now adds the Killers in orderMoves() when the moves are generated already, loosing time. So I should maybe rewrite it to look at killers first and then do the move generation. Does that mean that you search killers before promising captures ? >> >> What is the best way to see how good my move ordering is ? Should I simply >> count how often the move "ordered" as number 1 turns out to be the best >> move ? > >That is a good approach. I do this in Crafty, and average 92%. That is, >92% of the time, when I get a fail high, it is on the first move searched. > I was just typing another question here (half a page with 2-finger system) when I found the answer myself. :-) Thanks for the help, Georg
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