No specific info about version 3.1. Please visit the main page of Queen-Talk Chess on Mac Informer.
Allows not only playing but also maintaining a database and analyzing games.
Sigma Chess is a freeware, master strength Macintosh chess program for Mac OS X.
Discover the truth behind the queen’s anger and save the world.
Grim Tales: The Stone Queen Collector's Edition is an addictive puzzle game.
Chess Browser is a program for managing a library of chess games.