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Subject: Re: How to create a custom opening repertoire for Crafty/ Some tips

Author: Peter Berger

Date: 09:24:36 10/09/04

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On October 09, 2004 at 12:09:57, David Dahlem wrote:

>On October 09, 2004 at 11:23:13, Peter Berger wrote:
>
>>On October 08, 2004 at 18:08:24, David Dahlem wrote:
>>
>>>Thanks for these excellent instructions, Peter. Now the most time consuming task
>>>is collecting and cleaning up the games to be used in creating Crafty books. I
>>>do have one question though. If only using these books against computers, is
>>>books.bin necessary?
>>>
>>Strictly spoken: no .
>>
>>But the easiest way to deal with it, is to just build books.bin _and_ bookc.bin
>>the same way, so that they are identical. Takes no time after all.
>>
>>This way your repertoire will also be used in case Crafty doesn't get the
>>computer command for whatever reason ( there are issues with some GUIs).
>>
>>Peter
>
>Hi Peter
>
>I don't understand. Why identical books.bin and bookc.bin? How does Crafty
>handle them differently if only playing against computers? By the way, i tried
>bookc.bin by itself, and it didn't work. I created a book.bin and tried it by
>itself and it works. Very confusing. :-)
>
>Regards
>Dave

book.bin is the main book, created out of some PGN database, usually
unannotated. This is used according to the book usage parameter whenever there
is nothing to be found in books.bin or bookc.bin . For example if you just want
to have Crafty play openings Fischer used, you can create a main book out of
Fischer games and forget about a special repertoire altogether.

books.bin is the main repertoire file - here you can adapt usage for moves, add
new ones, etc, as explained previously.

bookc.bin is the same, but it is only used, when Crafty is aware of playing a
computer.

In case books.bin and bookc.bin are identical, you don't have to bother that
much whether Crafty gets the computer command, as the intended repertoire is
used anyway.

You can also simply forget about bookc.bin and just create a books.bin btw.

The general purpose of these files is explained well in the Crafty
documentation. As my English has severe limits you might want to check there, if
it is easier to understand.

Peter





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