This is jja, a command line utility to interact with various chess file
formats. It is still in its very early stages of development. The initial
intention of the author was to convert their opening books which were saved with
ChessBase's proprietary CTG format to the free and open PolyGlot format.
Overtime they intend to add support for other chess file formats (cbh, epd,
pgn, si4, si5 and so on).
As of version 0.3.0, jja supports reading/querying:
binabkctgobk (version 1 and 2, w\o,with text notes)opening book files, wheras it supports writing/converting to:
binopening book files.
During opening book conversion, jja uses the information provided in various input
opening book formats to come up with a move weight which accompanies the move in
the PolyGlot opening file. jja also writes some custom numbers in the learn
field, such as NAGs during ctg conversion or priority during abk conversion.
You may disable this custom usage using --no-learn as it may confuse other
software making use of this field.
Use jja info to get brief information about the chess file.
Use jja find to search for a position in a chess file.
Use jja edit to edit opening book files and convert to PolyGlot files.
jja determines the type of the file using its file extension. Files with the
extension .bin are considered PolyGlot books. Files with the extension .ctg are
considered ChessBase books. Files with the extension .abk are considered Arena
books. Files with extension .obk are considered ChessMaster books.
By default if the standard output is a TTY, jja will display
information using fancy tables. Use --porcelain command line
option to get the output in CSV (comma-separated values) format
instead.
I've started hacking this on International Women's Day 2023, a day to honor the achievements of women and advocate for their rights worldwide. As a person of Kurdish heritage, I am particularly moved by the slogan "Woman, Life, Freedom," which has become a symbol of resistance against oppression and a call for equality. In the spirit of free software and free speech, I strive to contribute to the creation of a more just and inclusive society, where every human being is granted the freedom to express themselves and pursue their dreams. I also honor the memory of Mahsa Amini, whose tragic death reminds us of the urgent need to fight for women's freedom and safety.
More on Wikipedia, WikiPedia::Woman,Life,Freedom