Author: Dann Corbit
Date: 10:35:02 05/10/00
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On May 10, 2000 at 10:40:12, Pete Galati wrote: [snip] >I noticed the other day from looking at the Deeper Blue/Kasp logs, when I looked >at the less insane looking cleaned up logs, that Deeper Blue didn't _appear_ to >be searching all that deep. What I decided was that those logs were not such a >good indication of what was happening. Probably also that I didn't understand >what I was looking at. Deep Blue does not do NULL move pruning, but they do achieve a similar result by searching much more deeply in other directions. So the least deep of the searches is effectively NULL pruned. Often, the deepest parts of the searches are two to three times the depth of the minimum depth searched. The depths reported are the minimum depths. As an analogy, current chess programs would indicate their NULL move depth searched for a commensurate result.
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