Computer Chess Programming

Hiarcs announced a new version of Sigma Chess with HIARCS 11.

Exachess is a chess-database program for the Macintosh that can be used to store collections of chess games or to play games with with several chess-engines. There is a free Lite version and a paid Pro version.

Vektor3 Chess is a chess program for the Mac with features that include a customizable chessboard with multiple piece sets, multiple documents, multithreading, support for variations, annotation editor with text styles, move annotations and diagrams, several playing levels, opening book, game analysis, position editor, PGN import and export, HTML export, speech, multiple undo and redo, HTML help including rules of chess.

Sigma Chess and Hiarcs announced Sigma Chess 6.1 with HIARCS 9.6 engine for Mac OS X.