Author: Robert Hyatt
Date: 07:14:05 08/24/00
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On August 23, 2000 at 23:20:35, Joshua Lee wrote: >Well true except you would think that it would come back with a similar score >eventually. As far as i know Deep Thought is Like taking Hiarcs or diep or any >other slow searcher adding more knowledge and giving it Speed Like Crafty, Fritz >etc. > >According to what i've read in the book mentioned in my previous post: >In 1993 a panel discussion concluded that a 14 Ply search by Deep Thought or an >equivalent program would be enough to defeat Kasparov. A 13 Ply search might be >sufficient, but a 12 Ply search was probably not enough. > >What i have to say about this is that different programs search differently, so >what is a 14Ply search by Deep Blue to Hiarcs? >What about to Little Goliath, or Junior or Fritz? > >Obviously Nodes per second is only half the story for instance Hiarcs would take >forever to find that white is better after 17...Qe8 in Kramnik-Deep Junior >but Little Goliath takes 17Ply i believe it was to see that it's up 0.70 or >1pawn + not sure exactly , Deep Thought was playing 90minute games against >Kasparov Searching 2.1MNps (300Million)and Deep Junior was Up against the same >league of player Searching 2.6M in 40/2 possibly looking at between (900M and >1Billion nodes) if it was using the Kramniks time efficiently. > >Funny you can say Deep Thought is as effective if not more so on slower hardware >than a commercial on faster hardware. Where did I say that? And how could we answer that, since Deep Thought's hardware was faster than _any_ PC-type machine available today, even including machines like the 8-way xeons. And that is only deep thought. I simply said that I would take _their_ 12 ply search over _any_ 12 ply search by another program. They didn't use null-move or any other speculative form of forward pruning. The only mistakes they made were horizon mistakes that everybody makes, and they made fewer than the rest due to their search extensions.
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