The Dbsus4 is quite difficult and a stretch for the hand. Place the tip of the index finger on the first fret of the G string. Next the middle finger stretches over to the third fret of the C string. The ring is then placed on the fourth fret of the E string and the pinky on the fourth fret of the A string. The middle and ring fingers need to move back a little to make room for the pinky which is crammed in at the end. It will take some maneuvering and adjusting to get to the point where all notes sound when strummed.