Freeware by Tim Mann. WinBoard (or XBoard for Unix) is a graphical user interface for chess. You can use it as a PGN-viewer or to play chess on the Internet (e.g. at Internet Chess Club). Many freeware chess programs use WinBoard as their graphical interface. Homepaga:Tim Mann's Chess Pages (2.1 mb). Download: http://www.tim-mann.org/xboard.html