Author: John Merlino
Date: 10:47:25 06/18/02
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On June 17, 2002 at 21:15:18, Russell Reagan wrote: >On June 17, 2002 at 21:05:48, John Merlino wrote: > >>X = brute force search depth >>Y = MINIMUM extension depth > >Hmmm...still a little confused :) > >I understand what maximum extension depth would be. That would be the highest >(or deepest) depth reached anywhere in the search. The minimum extension depth >isn't quite as obvious to me. Is this the first depth after qsearch where an >extension of some kind occured? > >How does what you do with X/Y differ from what other engines do? > >Russell Here is Johan's reply: --------------- Technically speaking, "Y = minimum extension depth" is right: lines with 0 extensions go to depth Y, if they pass selection of course. Lines with more than 0 extension go beyond Y. But using this terminology, X is the *minimum* full-width depth. (Additionally: X is part of Y, IOW there is no X+Y.) So to avoid confusion it is easier to stick to "nominal depth", because that that is how everyone else uses it. Eg Fritz's Y/Z means nominal/deepest. And incidentally Fritz's full-width depth is always 1. --------------- I hope that clears it up.... jm
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