guitar chord
F♯sus4
The third replaced by the fourth, which leans on the third it is standing in for.
Written the other way round it is G♭sus4 — the same twelve keys on a piano, a different piece of notation.
Every fingering that fits a hand
224422
moderate · barre
24440x
moderate
244422
hard · barre
22442x
moderate · barre
xx4607
easy
What is true of it
F♯sus4 is F♯, B and C♯ — 1, 4 and 5 counted from F♯.
These are also the notes of Bsus2/F♯. 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 224422: 3 fingers, one of them barring the 2nd fret, held at the 2nd 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.
3 of the 5 need a barre.
Where its notes are on the neck
The brass dots are F♯, the root. Everything else is a chord tone with its degree printed in it.
With a different note underneath
F♯sus4/B
x24422
F♯sus4/C♯
x4440x
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.