Capt. JG wrote:
3 pts for the best answer. Fewer points for second, third best.

You're sailing a 36' relatively modern sailboat sailing on a broad reach,
starboard tack. To port is another sailboat also sailing on a starboard
tack, approaching on a beam reach. Additionally, to starboard of your vessel
is a sailboat under power. The pecking order is obviously, leward over
windward, sail over power. Unfortunately, the sailboat under power is not
giving way. You signal several times using various methods available, but
they're distracted, don't respond, perhaps don't know what to do. You can't
turn to starboard, because that would be directly into the sailboat under
power. You can't jibe, because that would be directly into the approaching
sailboat on the port. Time is rapidly running out to avoid a collision,
which you're required to do.

What are your options? What would you do?

Douse your sails, turn in the engine and put your boat in reverese, then
get on 17 and hail the engine powered boat, switch to an appropriate
channel, and then serrtly tell them what's what...