Author: Shep
Date: 00:31:28 08/20/99
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On August 20, 1999 at 03:16:04, Terry Ripple wrote: >I noticed that when i do engine vrs engine matches with Hiarcs7.32 and other >chessbase engines that have these learning features, after 50 or so blitz games >i sometimes have a really weird "learned" opening book that was created from the >book learning! Lets say Hiarcs won its first game with the opening move b4 or >maybe g3, then it will play these lines all the time until it starts losing with >these lines. After these kind of matches, my learned opening book would >only play e4 and b4 or in another case it would only play g3 and b3? > I know that i can turn off the tournament mode to get my normal book back or i >could also re-set the book but is this learning feature mainly for developing an >opening book against its opponent or was it developed mainly to kill another >program early on. > Also, is it wise to have the position learning on in blitz matches with engine >vrs engine, because the games not being of high enough quality? In general, the learning influence of Blitz games is less than that of tournament TC games, but you are right, if you are playing dozens of Blitz games, the small values add up to something significant. I have adopted the custom of either starting every new tournament with a fresh book (especially since I have many engines using the General.ctg) or keeping separate copies of books with learning from Blitz and tournament games. Book learning is a wonderful thing as long as you stick to one type of time control only (some occasional Blitz games don't matter much, though). --- Shep
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