Root on A string
no fifthx-13-12-14-13-x
B♭maj9 is the B♭ major 9 chord. Its notes are B♭, D, F, A and C. It is the same chord as A♯maj9. A major seventh plus a ninth. The compact grip omits the fifth.
x-13-12-14-13-x
Numbers show frets from the low E string to the high e string; x means don't play that string.
Every B♭, D, F, A and C 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 9 chords