Partial barre
fret 3x13333
B♭6 is the B♭ major 6 chord. Its notes are B♭, D, F and G. It is the same chord as A♯6. A bright alternative to a plain major chord; common in swing and pop.
x13333
Numbers show frets from the low E string to the high e string; x means don't play that string.
Every B♭, D, F and G on the first 12 frets. The filled dots are the root, B♭. Build your own shape from any nearby group.
Other B♭ chords
Other major 6 chords