Sigma Chess screenshots

Sigma Chess is a freeware, master strength Macintosh chess program for Mac OS X.

Alternative downloads

SIGMA Photo Pro
Free
rating

Image processing for SD9/SD10 digital SLR.

SIGMA Optimization Pro
Free
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This app enables you to connect lenses from new product lines to your computer.

HIARCS Chess Explorer
rating

Allows not only playing but also maintaining a database and analyzing games.