guitar chord
A♯sus2
The third replaced by the second. Nothing in it decides between major and minor.
Written the other way round it is B♭sus2 — the same twelve keys on a piano, a different piece of notation.
Every fingering that fits a hand
x13311
moderate · barre
x1331x
moderate · barre
6333xx
hard
6335xx
hard
xx8566
hard
What is true of it
A♯sus2 is A♯, B♯ and E♯ — 1, 2 and 5 counted from A♯.
These are also the notes of Fsus4/A♯. Which name is right depends on what is underneath and what came before — the notes alone do not decide.
The easiest of the 5 fingerings below is x13311: 3 fingers, one of them barring the 1st fret, held at the 1st fret.
None of them uses an open string, so this chord moves up the neck unchanged — the same shape 1 fret higher is the chord a semitone above.
2 of the 5 need a barre.
1 string stays silent.
Where its notes are on the neck
The brass dots are A♯, the root. Everything else is a chord tone with its degree printed in it.
With a different note underneath
A♯sus2/B♯
x3331x
A♯sus2/E♯
113311
An inversion is the same chord with a different note lowest. The name changes to a slash name because the bass is what a listener hears as the foundation.