Par4QC If declared 'unplayable' in a bunker that is a 2 shot penalty.
This is not covered by rule 18 (ball lost or out of bounds) but by rule 19.3 (unplayable in bunker).
A player is the only person who may decide to treat their ball as unplayable by taking
penalty relief under Rule 19.2 or 19.3.
Unplayable ball relief is allowed anywhere on the course, except in a penalty area.
Only 1 penalty if one replays the previous shot (stroke and distance relief); the 2 penalty option is back-on-the-line behind the bunker.