Author: John Merlino
Date: 23:34:05 12/15/02
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On December 16, 2002 at 00:47:21, Mike S. wrote: >On December 15, 2002 at 22:32:30, John Merlino wrote: > >>You should note that different programs report their search depth differently. >>Fritz, from what I've been told, reports the MAXIMUM extension depth for the >>given PV, whereas CM reports the MINIMUM extension depth. Other programs, like >>Gambit Tiger, might do something different. > >I assume you mean the second number, which is displayed after the slash. I >always wondered how The King remains in small depths (I mean the value before >the slash), but still sees much, like above. > >Is it correct that the number before the slash basically is meant to be the >"complete" of the search depth basically, while after the slash the extension's >depth - min. or max. - is given? > >(I'm aware that "complete" will include forward pruning etc. too.) The number before the slash is the "brute force" depth, and the number after the slash is the minimum extension depth (Johan calls this the "nominal depth"). Or, perhaps Johan's layman's explanation might be simpler. He said, for a depth of X/Y: -- All interesting moves are searched to (at least) Y ply. -- All legal, but mostly stupid, moves are searched to X ply. jm
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