Syzygy tablebases

[benthevining]

Discussed in #343

^{Originally posted by benthevining July 5, 2025}
See https://github.com/syzygy1/probetool, https://github.com/syzygy1/tb and https://github.com/AndyGrant/Pyrrhic

• Probing interface (possibly Pyrrhic)
• Script for downloading tablebase files for given cardinality (or should the engine have a command to do this?)