Author: Mike Byrne
Date: 21:08:32 06/12/03
Go up one level in this thread
On June 12, 2003 at 22:44:25, Vincent Diepeveen wrote: >On June 11, 2003 at 21:06:15, Mike Byrne wrote: > > > >>On June 11, 2003 at 00:28:29, K. Burcham wrote: >> >>> >>>we can say that with todays hardware, todays programs wont play >>>36.axb5 axb5 37.Be4 in tournament time control. there are several programs that >>>will play these three moves if given enough time, for example, Deep Sjeng 1.5 in >>>8 hours. >>> >> >> >>after I posted that, I realized I was thinking "normal time controls" but if >>somebody left their program running a very long time -- it might find it. I > >Let's be clear. Deep Blue just searched 10 or 11 ply there. > >Because of hashtables we get that very quick nowadays. At 30 seconds a move >you already outsearch deep blue in these positions. > >That's why when Be4 showed up at 11 ply at the time in DIEP and in Crafty and >also in Deep Blue is no big of a surprise. > >We got simply deeper with more time because of hashtables. > >So comparing something that searched 10-11 ply with a simplistic evaluation to >modern chessprograms is simply pathetic. Deep Blue is simplistic evaluation - that's not true. Why do you say that? Is this something Dr. Hsu told you? Think about what you're saying - Deep blue searched about 200M NPS- that is still 40-50x faster than any top of line PC SMP machine today. Are you taking into the considerations of Deep blue extensions - Dr Hsu in his book regarding this position said that the main line was at least 24 ply deep and maybe over 40 ply deep (pg 229) (accounting was not one of DB strengths). You are right ->comparing PC programs to Deep Blue is like comparing you to Bob Hyatt -> simply pathetic. > >>think that is true with many positions - obviously I meant somewhere in 20 >>minutes or less (or maybe not so obviously) -- but I agree with your point >>--although the heading is a little harsh since I think you knew what I meant...
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