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 0.3.1, jja supports reading/querying:
binabkctgobk (version 1 and 2, w\o,with text notes)opening book files, whereas it supports writing/converting to:
binabkopening 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.
Note, Arena, aka abk, opening book file writing support is only supported from
Chessbase, aka ctg books. Use the command line flags --author, --comment,
--probability-priority, --probability-games, --probability-win-percent to
configure ABK header metadata. Game statistics (minimum number of games/wins, win
percentages for both sides) are managed automatically by jja.
In-place editing for Arena opening books is also possible using -i,
--in-place=SUFFIX command line option. Conversion from PolyGlot, aka bin, and
ChessMaster, aka obk opening books to Arena, aka abk opening book files is
planned for a future release.
To compile from source, use cargo install jja. This requires the rust
toolchain to be installed.
As an alternative, static builds of jja are hosted on
chesswob.org. These versions are signed by GnuPG, using
key D076A377FB27DE70. To install, acquire
the latest version from chesswob.org, verify the
checksum and the GnuPG signature:
$> curl https://keybase.io/alip/pgp_keys.asc | gpg --import
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 13292 100 13292 0 0 13535 0 --:--:-- --:--:-- --:--:-- 26584
gpg: key D076A377FB27DE70: public key "Ali Polatel (Caissa AI) <alip@caissa.ai>" imported
gpg: Total number processed: 1
gpg: imported: 1
$> for f in jja{,.sha512sum,.sha512sum.asc}; do wget -q https://chesswob.org/jja/${f}; done
$> gpg --verify jja.sha512sum.asc jja.sha512sum
gpg: Signature made Sun Mar 19 20:52:41 2023 CET
gpg: using RSA key 5DF763560390A149AC6C14C7D076A377FB27DE70
gpg: Good signature from "Ali Polatel (Caissa AI) ...
$> sha512sum -c jja.sha512sum
jja: OK
$> sudo install -m755 jja /usr/local/bin
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