Sigma Chess is a freeware, master strength Macintosh chess program for Mac OS X. The feature set includes: Optional HIARCS engine, UCI Engine support, Databases, PGN/EPD, basic desktop publishing, end
Daryl Guppy has been one of Australia's foremost experts on share trading and charting for almost 20 years. His first book, Share Trading, is still a must-read for people wanting to learn about the ma