Author: Marc van Hal
Date: 10:31:53 10/22/02
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On October 22, 2002 at 09:59:08, Uri Blass wrote: >On October 22, 2002 at 09:14:15, Bob Durrett wrote: > >>On October 22, 2002 at 08:31:34, Chuck wrote: >> >>>I have staged some tournaments on my computers at home at time controls of >>>averaging as high as 30 minutes per move, trying to test the deep analysis >>>capabilities of the stronger programs. However, one thing I have never been >>>satisfied with is the opening books I've used. >>> >>>To create an equal environment where the opening book is not a factor in a >>>programs strength, the same book should be used for all programs. However, any >>>one commercial book will give an unfair advantage to the program for which it >>>was developed. Further, many books have bad lines which can lose the game for an >>>unlucky engine. Are there any recommendations as to which is the best opening >>>book for universal use in a tournament? >> >>Recent posts here at CCC make me believe that each program needs to have it's >>own book. This is because different chess engines play differently. HIARCS, >>for example, is said to be heavy on chess knowledge. Fritz is supposed to be >>the speedster, relying primarily on search depth. I don't know if those >>characterizations of HIARCS and Fritz are accurate or not, but if they are then >>it seems most reasonable to me that openings best for HIARCS would be very >>sub-optimal for Fritz and visa versa. >> >>If you accept the above conclusion, then you are led to believe that it would be >>unfair to HIARCS to require that it use the Fritz book and visa versa. > >I read a claim that the Fritz7 book is the best and it is better for all engines >to use it. > >I read a claim that Tiger14 could lead the ssdf above Fritz7 with the fritz7 >book and this claim was from the person who is the author of the tiger book. > >Uri I shall reject this point Even Jeroen told this as a joke but it was also his mistake that it wasn't as strong as it could be Also the Fritz book is far weaker then some of my other self created books. Just by using the databases from Schredder5.32 and Deepfritz7 and the anotatated games of the Worldchampions and candidate matches. (In which are also manny of my analyzes.) So it is already prety strong without the hand made stuff. Also the Fritz book sometimes leaves Fritz in lost positions when out of book. So bigger is not always better. And for sure is not always to the likings of Fritz But indeed for Rebel and Tiger and you may gues why. Marc
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