Author: Ricardo Gibert
Date: 19:41:35 01/06/00
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On January 06, 2000 at 21:29:57, Mike S. wrote: >On January 05, 2000 at 22:12:45, vincent dichiacchio wrote: > >>One of my chess programs always transposes to books when it can, even when it >>shouldnt. > >What do you mean, are the book move worse than what the program would calculate >itself? In this case the book must be bad, or not in tournament setting. >In the Fritz GUI's, it is a user setting if the book should be checked always or >not. But normally, transposing back as you say, should be an *advantage* when >the book is well done, consisting of reliable theory moves. >Some opening book, especially large one's generated from game databases, have >been critizised because of blunders, but also because they may be *too large*, >delaying the engine start to a point where the middlegame may be already shaped, >leaving not enough "game" for the program. > >Regards, >M.Scheidl What he means is, it will transpose back even when there might be something better. When what the program could and should calculate is actually better than transposing, his program prefers to transpose. He did not mean to imply that the book was bad. For instance, it may prefer to get back into book, rather than win a piece.
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