Author: Gordon Rattray
Date: 17:03:12 12/19/01
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On December 19, 2001 at 18:45:25, Peter Berger wrote: >On December 19, 2001 at 18:25:49, Louis Fagliano wrote: > >>Just what is with the fritz7 opening book?? In game three doesn't 1. e4 e5 2. >>Nf3 f6? lose by force to 3. Nxe5! right? >> >>And in game four there's 1. d4 d5 2. f3?! >> >>But the main thing is the former, namely Damaino's Defense, named after him not >>because he ever played it in a serious game but because he published a treatise >>showing that it loses by force. And this was centuries ago! >> >>Some it seriously wrong with Fritz's new opening book, no doubt about it. > >All of this isn't part of Fritz' new opening book . This is probably some kind >of personal opening book used for unknown reasons in this match. I wish it was, but I think you've got it wrong. This has been mentioned before. The "Fritz7.ctg" book file marks moves using colours. My understanding is that "green is good" and "red is bad", generally. The openings outlined above appear in *green*. They do however have "?" mark next to them, but this doesn't seem to stop them getting played?! I compared the Deep Fritz book, and the above openings are in *red* (well, for the "bad" moves). It looks to me like the marking of moves (good versus bad) is going wrong somewhere. Maybe the author thought that "?" was enough to mark a bad move... but the GUI or engine only interprets the colours?! Just a guess... but there's definitely something wrong with the Fritz 7 book usage. > >The new Fritz book by Alex Kure seems to be very good - as usual. I don't think the author has necessarily produced a bad book. e.g. After 1) d4 d5 it shows: "c4" and "Nf3" are coloured green with no "?", so this looks as expected (they are good moves) "Bd2" is red and has a "?", once again, seems normal (it is a bad move) But "f3" is *green* with a "?", what does this mean? Is it being used consistently by the book author and the GUI/engine? Gordon
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