Syzygy tablebases in xboard I'm trying to set up the five-men syzygy tablebases for use in xboard 4.8. Stockfish 6 and Komodo 9 are both supposed to support Syzygy, but in Xboard, their SyzygyPath option is missing from the UCI options.

I've tried setting up the tablebase through the GUI options but there's no documentation on how to do this with Syzygy rather than Nalimov that I can find. Anyone have a clue how this is done?
xboard is not a UCI user interface, so you'll need to install the Polyglot adapter to make it work. Once you have the Polyglot installed, you'll need to edit the polyglot.ini file. Read here for instructions on how to do it.

Please note Polyglot is not a very professionally made software. You'll only be able to find some old documentation. The whole process is quite technical. If you don't want to spend the time, you might as well consider other user-interfaces.