A#m or Bbm chord
A# or Bb minor chord for guitar in different forms: basic, as barre chord and with a capo.
A#m (capo 1)
A#m barre 1st
A#m barre 2nd
A#m and Bbm are the same chord, but they change theirs name depending on the key they are played in.
Theory of the A#m / Bbm chord
The notes that an A#m chord consists of is A#, C#, F. The notes that an Bbm chord consists of is Bb, Db, F.
Alternatives with capo
Am shape with a capo on 1st fret (see picture).
Gm shape with a capo on 3rd fret.
Em shape with a capo on 6th fret.