Author: Arturo Ochoa
Date: 07:30:42 02/18/05
Go up one level in this thread
On February 18, 2005 at 04:50:13, Uri Blass wrote: >On February 18, 2005 at 04:25:37, Sune Fischer wrote: > >> >>>>These so called "killer books" are always used by very strong engines on top >>>>hardware. >>>>The killer books seem to work best against weaker engines on weaker hardware. >>>>Now isn't that odd? :) >>> >>>Killer books are in most of the cases for rich people who can pay for book >>>makers so it is not a surprise that they work against engines with weaker >>>hardware that do not have time to prepare. >> >>That could be the reason, but the point is that it won't show a lot because >>these engines are so strong already that they would have won even with a bad >>book. >> >>It would be far more interesting to give Beowulf a 700 Elo book and then go >>wipeout Shredder & co in the big tournaments. :) >> >>>I also do not beliebe in 700 elo but I certainly believe that they can improve >>>the performance by 100-200 elo in a tournament when part of the opponents. >>> >>>If you have statistics of a lot of games that you get 70% against some program >>>with line A and 50% against the same program with line B then choosing line A is >>>important. >>> >>>If you have similar statistics for many programs then it may give you >>>significant increase in performance in tournaments. >> >>I tend to think the effect is mostly psychological. >> >>I can see how comming out of book with a +0.6 score against an equal opponent >>must feel like half a victory, and it's not hard for me to imagine that some >>would call that totally winning :) > >I am not talking about score but about statistics > >It is possible to test engine A against engine B in many openings. > >If opening X leads to 50% and opening Y leads to 70% then opening X is better >against engine B(it does not mean that it is better generally against >everything). >> >>>Even with no special preperation against specific opponent you may have >>>statistics that your program score 60% with 1.e4 c6 2.d4 d5 3.f3 and only 50% >>>against the same opponents with 1.e4 c6 2.d4 d5 3.e5 so of course opening >>>preperation can help significantly in tournament. >> >>I believe such is thing is possible, but increasing your score from 50% to 60% >>is still not much more than 50-100 Elo. >> >>-S. > >I agree so I do not think general preperation can give you more than 50-100 elo >preperation against specific opponents can give you another 50-100 elo so the >general improvement in tournaments can be 100-200 elo. > >Uri Again the question: how do you know that? Have you ever run any test that holds your suppositions? If you tune very well a book against a specific opponent and your opponent is similar in strength and you get the 90% of the score. What is the elo of your engine against this engine? Only 100-200 elo. Provide facts......
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