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Chess - GNU Chess

gnuchess [OPTION]...

GNU Chess 6.2.8 Copyright © 2021 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.

Play the game of chess.

-h, --help
display this help and exit
-v, --version
display version information and exit
-q, --quiet
make the program silent on startup
--silent
same as -q
-x, --xboard
start in engine mode
-p, --post
start up showing thinking
-e, --easy
disable thinking in opponents time
-m, --manual
enable manual mode
-u, --uci
enable UCI protocol (externally behave as UCI engine)
-M size, --memory=size
specify memory usage in MB for hashtable
-a filename, --addbook=filename
compile book.bin from pgn book 'filename'
-g, --graphic
enable graphic mode
Options xboard and post are accepted without leading dashes for backward compatibility.
Moves are accepted either in standard algebraic notation (SAN) or in coordinate algebraic notation.
The file 'gnuchess.ini' allows setting config options if --uci is not used. See 'info gnuchess' for details. The file is looked in three locations according to this precedence: current directory, the directory pointed to by environment variable GNUCHESS_PKGDATADIR, or the package data directory stated at configure time.

Report bugs to <bug-gnu-chess@gnu.org>.

The full documentation for Chess is maintained as a Texinfo manual. If the info and Chess programs are properly installed at your site, the command
info gnuchess

should give you access to the complete manual.

May 2021 Chess 6.2.8