Author: Antonio Dieguez
Date: 17:33:34 12/31/02
Go up one level in this thread
>>>>I thought that every time a move cause cutoff it is considered as the first >>>>killer move for that ply and the question if it is because of hash or because of >>>>other reasons is not relevant. >>> >>>I though the hash was something apart. >>>And as I see in Ed's page, he has it apart too, with 127 points. >> >>oops I didn't answer well. >>Forget those two sentences. >> >>my answer is that at least for me it is relevant. >> >>And when a cutoff ocurres it is not so obvius that promote to the first place or >>even second is the best. > >You may be right and >I agree that it may not be best to promote a move that cause a cutoff >every time to the first place but the original idea of killer move is to promote >killers always to the first place(they can go down only one place but go up only >to the first place). I don't know if it the "original" idea. Who was the first mentioning killers anyway? I dunno. Perhaps is common when two killers are used. >I understand that if a move is not in the list of the first 5 move then >promoting 3 places mean going to the 3th place and there are basically 6 places >and every new killer move that is not in the best 5 is ranked 6th. No, sorry, the fifth "killer" is just like the first move to try after the four "real" killers of the current ply. So promoting 3 places means going to 2th place. To any other place works worse for me. >I have ideas that I did not try about move ordering of killer moves but this is >not one of them so I may try some combination of my ideas with this idea. Hopefully you have luck and more killers works better than 2 in your program. I also will toy more now a little with killers... be well.
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