Author: Miguel A. Ballicora
Date: 09:03:28 01/26/01
Go up one level in this thread
On January 26, 2001 at 09:38:16, Robert Hyatt wrote: >>>So the question is, what sort of moves could be candidates for a negative >>>extension? >> >>Some underpromotions. >> >>Greetings, >>Steffen. > > >captures that SEE say lose massive material Would not this discourage to make sacrifices? Maybe it will be useful combined with an agressive "positive" extension policy so lines that are losing material but are interesting are extended later to compensate this initial negative extension. Sounds crazy? >last few moves at a ply when the score has not changed from alpha for all the >others. Sounds very interesting... it will be corrected at the next ply if it is wrong. With a very good move ordering this could be a winner! >Move that the hash table says would fail low if the hash table entry had enough >draft to make this happen. I don't understand. Doesn't fail low automatically if draft>depth? >moves that return a piece to the square it sat on 2 plies ago. As long as it is not check? that will avoid missing some perpetual checks. Wont'it? In fact, I am "positively" extending here! Regards, Miguel > >lots of things to try. Whether they would work or not is another thing, >of course. :)
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