Vladimir Medvedev wrote:I want to create .bin opening book in WinBoard 4.8 under WinXP SP3 32-bit. First I open .pgn file with games, and select "Save games to book" (the only book-related item in File menu). The dialog appears: "Book file exists. Try again to overwrite". I try again. After that I see the games in "Game list" window but no .bin file is created. Also, I see nothing in "Edit book" dialog, and "Edit" button is disabled too.
What am I doing wrong?
I don't understand that. The .bin file should already have been there, because otherwise it would not have given the "Book file exists" warning. It only does that if it can open the currently selected book filename (in Common Engine Options) for reading.
So are you saying that the file was no longer present after this action, because WinBoard deleted it? That should not be possible, as it just tries to overwrite it with the new book. This should always let the file continue to exist, even if its new size could be zero bytes. Even an empty book should take 16 bytes, because Polyglot books always contain a dummy entry with key 0xFFFFFFFFFFFFFFFF.
I have no PGN collection of Chess games on the laptop I am now on, but I just tried this a few days ago for a collection of 1000 Shogi games, and it worked flawlessly.
I also don't understand the "after that I see the games". You should already have seen those games before, right? The "Save Games as Book" would not open the Game List by itself.