Author: Bob Durrett
Date: 08:03:38 10/23/02
Go up one level in this thread
On October 23, 2002 at 10:55:21, Chuck wrote: >On October 22, 2002 at 11:17:19, Bob Durrett wrote: > >>On October 22, 2002 at 10:06:12, Paul Doire wrote: >> >>>On October 22, 2002 at 09:43:08, Chuck wrote: >>> >>>>On October 22, 2002 at 09:14:15, Bob Durrett wrote: >>>> >>>>>On October 22, 2002 at 08:31:34, Chuck wrote: >>>>> >>>>[snip] >>>>> >>>>>Summary: >>>>> >>>>>I propose that each chess engine be given the opening book which provides >>>>>optimal performance for that engine. The chess engine programmers should have >>>>>the final say on which book is to be used by their chess engine. >>>>> >>>>>Bob D. >>>> >>>>My reply to this is that I would like to agree, but there is a large difference >>>>in the quality of some of the books. Also, some engine books give the appearance >>>>the author has "booked up" against other engines. All this skews the ability to >>>>distinguish which engine actually does a better job of evaluation. >>>> >>>>Key point: >>>> >>>>In order to be fair, the assumption should be made that we want to assess an >>>>engines ability to evaluate chess as a whole, and not merely the subset of the >>>>game which it's author feels it evaluates well. >>>> >>>>Regards, >>>> >>>>Chuck >>> >>>I think a possible way around specifically tuned books that are custom >>>designed by the chess engine authors is to have a "book" that has tactical and >>>positional openings i.e. a wide array of choices to suit all engines >>>"tastes". Then this one "super book" could be used by all engine authors >>>and their engines could select which part of the book best utilizes the >>>individual strengths of each particular engine. At least they would all have >>>access to the same "book" and it would eliminate the "...they had a better book" >>>controversy.The authors could then focus on how their engine can maximize the >>>use of this "book". Kind of like making all engines play to one GUI like Arena, >>>they could all "play" to one book. I am not a programmer and don't know if this >>>is possible, but it appears likely that it is. >>> >>>Food for thought, >>>Paul >> >> >>Perhaps one way to produce such a book would to combine all existing books into >>one. Each line in the new book would appear in at least one of the original >>books. Also, no line in the new book would fail to exist already in at least >>one of the original books. >> >>Is this what you had in mind? >> >>Bob D. > >You should understand that combining books will generally throw the statistics >off, statistics which are used to determine which is the best move to play. If >the statistics are off then the best move determination for a given position >will not be accurate. Sounds right to me. But I feel that it should be the responsibility of the chess engine programmer to weed out the chaff from the wheat and to adjust the probabilities correctly to optimize the result for his/her engine. Bob D.
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