Barre chord
fret 10, A shapex-10-12-14-12-10
Gadd9 is the G added 9 chord. Its notes are G, B, D and A. A major triad plus the ninth, without a seventh. Let the upper notes ring.
x-10-12-14-12-10
Numbers show frets from the low E string to the high e string; x means don't play that string.
Every G, B, D and A on the first 12 frets. The filled dots are the root, G. Build your own shape from any nearby group.
Other G chords
Other added 9 chords