You asked for the rule, I gave you the rule where a stopped vessel must maneuver.
Because a vessel being overtaken is not required to maneuver, so I did not include that in the rules where a stopped vessel is required to maneuver. And if you are on a stopped vessel, you are not overtaking, unless the vessel is approaching you stern first while operating astern, which is a special circumstance not covered by the rules.
Rule 13 supersedes any contradiction of rules for vessels in sight of one another. Pretty cut and dry.
No, I mean most authoritative texts say this is an exceptional circumstance, not a special circumstance.
Not to quote the rules again, but:
(b) A sailing vessel underway shall keep out of the way of:
(i) a vessel not under command;
(ii) a vessel restricted in her ability to manoeuvre;
(iii) a vessel engaged in fishing.
So if you want to be a sailing vessel, and not NUC, you’re going to need to move if any of these are approaching forward of 2 points abaft the beam.