http://www.enpassant.dk/chess/diaeng.htm
Fritz convert all this old books in *.CTG:
Chessmaster =*.obk
Hiarcsbook = *.hbk
Fritzbook =*.fbk
Geniusbooks = *.bok
Rebelbooks = *.mvs
All old formats fritz import inside book :
*.FBK;*.MVS;*.OBK;*.BOK;*.CGS;*.HBK;*.HBB
All these formats are converted into *. CTG then it is easy to convert to PGN. (I think yes)
These are additional to this topic:
Openings book, learning from a database
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The program learns from the games it plays. But you can also enhance the book in other ways.
The tools for this are in the menu Edit – Openings book :
Import book merges the contents of a different book into the current one.
Import old book converts a book in the old (FBK) format and imports the contents.
Import games merges the games of a selected database into the tree, including full statistics.
Learn from database adds the statistics from a selected database without actually importing the moves into the tree.
Add priority analysis imports the variations of a specified database and marks the moves as preferred tournament moves.
The program allocates “weights” to the individual lines of the book. These weights control the probability with which the program will choose the move in a game. The value can range between –125 to +125. The values are initially set to zero. The weights are given in the “Engine” column in the book window.
