Vektor3 is a chess that has a customizable chessboard with multiple piece stets, 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, extensive HTML help including rules of chess.
Version 3.2.2: Include chess players' ELO scores in printouts.
RequirementsMacOS X 10.1 or later
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