For Windows users:
If you like to play chess against the computer or if you are interested in matches between chess programs
(with a WinBoard or UCI interface) then, for a 64 bit computer,
you can download
Queen 4.06 (64 bit), of March 2024.
It has built-in test positions, to be used as instructive exercises.
If you have a 32 bit computer, please download
Queen 4.05c of 25 March 2021, instead of the above version.
Queen may play better in openings if you also use the separate (binary)
opening book (about 2 MB, zipped), based on files
supplied by Carlos Pesce.
For more information, please read the file readme.txt.
Some computer-chess related websites:
WinBoard Forum
Arena website