This is an extremely easy to use GUI that is intended to be simpler than any of the others available. In fact some reviews believed it was too simple to meet their needs, but for anyone desiring a GUI that is simple to use, this one is pretty good. The simplicity of Tarrasch doesn't mean there are no powerful features though. The move list is very nice with variations in bold and in color. When it comes to entering notes it has all the features of the more sophisticated programs. One feature that seems to be missing though is the capability to print out the game.If you want to do simple analysis then this one is about as easy to use as they get; you can have it running in a minute. You can download Tarrasch GUI with the free Rybka 2.3.2a engine installed HERE.