Author: Robert Hyatt
Date: 15:56:08 08/15/98
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On August 15, 1998 at 09:20:55, Tom Kerrigan wrote: >I know of some cases where killer books have been used, but after talking with >dozens of other chess programmers, I'm convinced it isn't a serious problem. >Most people aren't out to get other people at these tournaments. They just want >to do well and have fun. > >-Tom I don't agree here for several reasons. 1. Ed doesn't compete any longer, because of frustration with having to "re-tool" the book to avoid getting "cooked" each year. 2. several "amateurs" have claimed at WMCCC events that they have books that contain cooks for commercial programs, such as genius and rebel. 3. I competed at so many ACM and WCCC events that I can't count them any longer, and cooking went on all the time.. during the event, before the event, after the event (for the next year's event) and so forth. (3) was the direct reason I started the book learning experiments in Crafty, because Gower and myself had to devote a week or two each year to preparing our opening book to be *certain* we wouldn't repeat any games from last year, because we were "cooked" many times. Ther "cooking" didn't hurt very often, because our opponent didn't have access to "Cray Blitz" to make sure the cooking was "done"... be when replayed a game from prior years, we always ended up in a poor position and had to fight for our life. It even happens on the chess servers, between a manual program and an automatic one, or between a human and an automatic program... > >On August 15, 1998 at 08:20:23, Robert Henry Durrett wrote: > >>On August 14, 1998 at 21:12:17, blass uri wrote: >> >>>I think it is a mistake to use other probabilities then 0 and 1 in competitions >>>like the WMCC. >>>The opening book should not be known to the public otherwise it is easy to learn >>>the program. >>>The program can learn after a game it loses by changing a probabilities >>>0 to 1 and 1 to 0 >>> >>>Do programs use an opening book with probability 0 and 1 in events like >>>the WMCC? >>> >>>How many positions the opening books of programs contain? >>> >>>Uri >>Perhaps that's one of the reasons why the people who submit their chess engines >>for evaluation would not wish to use the opening repertoire which comes with the >>published version. >> >>It seems that such competitions for ratings are, to some extent, competitions in >>selection of opening book lines. >> >>What is the answer to this problem? How can the "opening book competition" >>factor be removed? Is it sensible to do this?
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