Author: Robert Hyatt
Date: 20:09:48 10/13/02
Go up one level in this thread
On October 13, 2002 at 13:19:34, Peter Berger wrote: >On October 13, 2002 at 12:00:39, Andrew Williams wrote: > >>Several people asked: >> >>Question: What does "12(6)" mean in Deep Blue's logs? >> >>Dr Hsu said, "12(6) means 12 plies of brute force (not counting the search >>extensions & quiescence). 6 means the maximum hardware search depth allowed. >>this means that the PV could be up to 6 plies deeper before quiescence." >> >>Unfortunately questions were being fed through a third-party, so it wasn't >>possible to get a follow-up. >> >>Andrew > >How about this one? > >EeEk(* DM) kiebitzt: kib question from ardee: Does "12(6)" mean 12 total ply or >12+6=18 total ply? This has the been source of huge arguments for years! >CrazyBird(DM) kiebitzt: 12 total in terms of brute force. 6 is just the max >partition in hardware. > >This one sounds pretty clear to me. > >Peter Ok... but here is the _rest_ of that question/answer: EeEk(* DM) kibitzes: next question: Seems like people wants to know what the exact meaning of ""12(6)" in the Deep Blue log files, can you explain this? CrazyBird(DM) kibitzes: 12(6) means 12 plies of brute force (not counting the search extensions & quiescence). CrazyBird(DM) kibitzes: 6 means the maximum hardware search depth allowed. EeEk(* DM) kibitzes: Question from BenjaminBlue: with the success of deep blue, why wasnt it released as comercial software to run on a pc and do you think fritz would have played better powered by an ibm RS6000 CrazyBird(DM) kibitzes: this means that the PV could be up to 6 plies deeper before quiescence. How do you interpret that last sentence? It sounds more in line with the email I posted here, "maximum hardware search depth allowed" and "PV could be up to six plies deeper before quiescence". Take those two together (they are part of the same answer) and the topic is a long way from "cleared up".
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