Root on A string
no fifthx-14-12-14-14-x
Bm9 is the B minor 9 chord. Its notes are B, D, F♯, A and C♯. A minor seventh with a ninth. This compact grip omits the fifth.
x-14-12-14-14-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 minor 9 chords