Bb m3/G
The Bb m3 chord consists of the Bb (Perfect unison) and Db (Minor third) notes, with G as the bass note.

How to play the Bb m3/G chord
- Play G as the lowest bass note in the left hand
- Find Bb (Root) on the piano keyboard
- Add Db (Minor third) — 3 semitones above Bb
- Press all 3 notes simultaneously to sound the Bb m3/G chord