Author: Eelco de Groot
Date: 19:31:00 11/06/99
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Peter, I think Robert is referring to the post from Scott Gash a while ago: ---------------------------------------------------------------------------------------------------------------------------- Posted by Scott Gasch on October 15, 1999 at 16:21:22: Hi, Today Dr. Hsu (who recently left IBM / Deep Blue team) gave a talk at Microsoft research. I went to hear what he had to say and ask him a few questions. The presentation was pretty much about the history of computer chess. Bob he mentioned you. Also Belle and Ken Thompson. And then went on about his own work on Deep Thought / Deep Blue. The entire time I had the feeling he was selling something. Towards the end he made a pitch for (private) support of his new effort which, as best I can tell, is a single processor chess card for a normal PC to take on Kasparov for the world title. He seems to think that Kasparov would put the title on the line in a rematch. Hsu just left IBM last week and has done no work on this yet but he is looking at a timeframe of 2001-2002 for the match. Dr. Hsu believes he would have a better than 50% chance of winning this match. He has also gotten permission from IBM to start with the deep blue chess chip and build upon it. I was able to ask some questions during and after the talk that may be interesting to you as well. Here is what I learned: 1) His new project will optionally use NULL move pruning and other pruning. He wants to be able to turn it on and off. He believes that with proper selective extension you do not need NULL move pruning at all if you have enough speed, though. 2) The eval hardware on Deep Blue was 2/3 of the chip and his eval function has about 3000 terms which they tuned by hand. He is thinking about different ways to automatically "train" the eval function now. Scott ----------------------------------------------------------------------------------------------------------------------------- But if anyone knows more we would of course all like to hear very much... Eelco
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