Sigma Chess Pro Free download

BS Editor: Sigma Chess is a master strength Macintosh chess program for both OS X and Classic Mac OS. The feature set includes: Optional HIARCS engine, UCI Engine support, Databases, PGN/EPD, basic desktop publishing, endgame databases, novice levels, a true perspective 3D board, ExaChess compatibility and much more.

You can:
-Play chess against the strong built-in engine.
-Play chess against the World Chess Championship strength HIARCS 12 engine bundled with Sigma Chess.
-Analyze and annotate games.
-Maintain & access game collections/databases.
-Customize the appearance & behavior of Sigma Chess.

Sigma Chess 6.1 Pro, which is not freeware, but a full featured commercial product. You must pay the $20 fee in order to register and become a legal owner of this version (click here for details on how to register and upgrade).

You will be able to download the product immediately after ordering!

Requirements: For Mac OS X 10.3 or higher