Author: Uri Blass
Date: 06:25:00 08/22/02
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On August 22, 2002 at 09:09:07, Matthew Hull wrote: >Almost all of what you say here seems like speculation and blind assertion. >What is motivating this kind of scoffing is what I don't understand. And it >tends to be very vehement. Why? > >You say above they did "no forward pruning" which Dr. Hyatt has already said >that Hsu said they did some kind of futility pruning. Why do you just >contradict that? I said that they did not do pruning except futily pruning and futility pruning is only about the last plies and it does not change the branching factor so later I used the words no pruning in this post about their branching factor because futility pruning is not relevant. > >You say that bigger eval is not always better. Agreed. But the tone of your >argument seems to assume that theirs definitely was not better. How do you >know? Based on the games Deeper blue did mistakes that top programs of today do not do. It is not a proof that deeper blue was worse but at least it proves that there were some positional areas when deeper blue was worse than the top programs of today. One example is that deeper blue could not find Kh1 in game 2 against kasparov and the top programs of today can find it for positional reasons because they understand that Qe3 is dangerous for white(they do not need to see the draw but only to evaluate Kh1 as better). > >It just looks like you guys are continually probing for ways to discredit the >machine, the team, and especially the _big_, _rich_, _American_ company. It is not about the american company. I am from Israel and USA is our best friend. Uri
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