Clearance #339 is one of sixty six-ball layouts on this site. The white starts on the head spot and you may take the balls in any order; what counts is the number of shots, with each foul adding one.
Only ball 3 lies within 35 cm of a pocket. Most pots here are long, so pace control matters more than usual.
No two balls are touching, so every ball can be played on its own.
Playing with no aiming error, our Expert computer cleared this layout in 7 shots, potting in the order 1 → 5 → 6 → 4 → 2 → 3. 2 of its shots potted nothing: they were position or safety shots to set up an easier pot.
A tidy target is to match the Expert: one shot per ball plus a spare. Keep the white near the middle of the table and the next pot will always be close.