Root on A string
no fifthx-10-9-10-9-x
G7♭9 is the G dominant 7 flat 9 chord. Its notes are G, B, D, F and A♭. A compact four-finger grip without the fifth. Try it as V in a minor key.
x-10-9-10-9-x
Numbers show frets from the low E string to the high e string; x means don't play that string.
Every G, B, D, F 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 dominant 7 flat 9 chords