Partial barre
fret 12x-10-12-12-11-12
Gm6 is the G minor 6 chord. Its notes are G, B♭, D and E. Minor with a natural sixth. Notice how it differs from a minor seventh chord.
x-10-12-12-11-12
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 E on the first 12 frets. The filled dots are the root, G. Build your own shape from any nearby group.
Other G chords
Other minor 6 chords