Learn to play the guitar!
Just click on the name of the chord and click SET to see the chord, PLAY to see and hear the chord played...
and CLEAR to start over.
N.B. The flashing button means to NOT play the string (i.e. if the E string button flashes, don't play the E string).
Be patient when you click play! It will take < 1 minute to load depending on your processor speed and your connection bandwith.