Author: Antonio Dieguez
Date: 16:35:40 12/31/02
Go up one level in this thread
On December 31, 2002 at 19:30:52, Antonio Dieguez wrote: >On December 31, 2002 at 19:22:26, Uri Blass wrote: > >>On December 31, 2002 at 18:59:07, Antonio Dieguez wrote: >> >>>On December 31, 2002 at 17:49:52, Uri Blass wrote: >>> >>>>From Ed programmer stuff >>>> >>>>Killer-One [current ply] 110 >>>>Killer-One [current ply-2] 108 >>>>Killer-Two [current ply] 106 >>>>Killer-Two [current ply-2] 104 >>>> >>>>I until today used only >>>> >>>>Killer-One [current ply] >>>>Killer-Two [current ply] >>>> >>>>I am interested to know if using 4 killers is a new idea or maybe this idea is >>>>known to be used by other programs. >>> >>>It is obviusly not a new idea, but a candidate to new idea is using exactly >>>those 4 killers, and the exact details of the rest of Rebel ordering. >>> >>>I use >>> >>>Killer-One [current ply] >>>Killer-Two [current ply] >>>Killer-Three [current ply] >>>Killer-Four [current ply] >>>Killer-One [current ply+2] >> >>You say that you use ply+2 and not ply-2 > >yes. > >> or maybe you say that you the first 4 >>are like Ed as "exactly those 4 killers suggest. > >I don't understand this but surely not. > >>>When a killer causes a cut-off it win two places. >>>When a killer is the best move (with exact score) it win 3 places. >> >>Do you say that a killer that give something above alpha but not above beta >>win 3 places in case that you find nothing better than it? > >yes. > >>>Also when the recommended move of the hashtable causes inmediate cutoff it win 3 >>>places. >> >>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.
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