Author: Dan Honeycutt
Date: 13:09:21 02/21/05
Go up one level in this thread
On February 21, 2005 at 15:59:26, Sune Fischer wrote: >On February 21, 2005 at 11:20:17, Dan Honeycutt wrote: > >>On February 21, 2005 at 02:32:08, Sune Fischer wrote: >> >>>On February 21, 2005 at 00:41:37, Dan Honeycutt wrote: >>>> >>>>I understood 1 vs 4 but not necessarily a repeating a losing line where, like >>>>you say, the difference can be anything you want. More like engine X plays in a >>>>tournament with book 4 and achieves a rating of 2700 - has chances to win. If >>>>it enters the same tournament with book 1 it will achieve a rating of ~ 2000 - >>>>no chance to win. >>> >>>Sure, but you don't have to be 700 Elo weaker to have practicly zero chance. >>> >>>Even if you are just 100 Elo weaker than the top guys you have extremely slim >>>chances of winning a long tournament. >>> >>I don't disagree. But Vincent's statement was the chances of the engine without >>book was "zero", not "slim". > >I doubt Vincent would ever use the word "slim", he'd always call it zero :) > >As you point out according to Vincent the 700 Elo means _zero_ chance to win. >This must be logically equivalent to saying the opponent has a _guaranteed_ win >out of book, this can only happen if the opponent can resolve to a mate. > >Even without book all you need is a bit of learning or you can just randomize >the opening moves a bit, then I see no way to get a 700 Elo advantage. > >>>From that POV getting the best book possible is of course important, still how >>>does this prove book 4 is worth 700 Elo? >>> >>I've seen no proof that book 4 is worth 700 points - in fact I strongly doubt >>it. My comment at the start of the thread was that the test by Tord did not >>disprove the statement. > >It can never be disproven, because if you fail it will be because the book "just >wasn't good enough". The experiment is a waste of time as it can't be proven to >be true either if it is false, which it probably is. > The right test (by that I mean no book vs a tournament book built by Arturo, Sandro or the like) would disprove it to me. Whether it would disprove it to Vincent ... Dan H.
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