Ronin and Queen+Pawn vs Queen

Whilst studying Queen and Pawn vs Queen endings, I came across this fundamental position which reminded me of this scene from the 1998 film Ronin (staring Robin De Niro)

Spence: We got shooters here and here. I tell you an old trick.

Sam: Hey...

[rubs the board]

Spence: What's your problem?

Sam: Draw again. Draw it again. You're the ace field man. Draw it again. It's a simple diagram. Just draw it again. Draw what you saw. Draw it again! Draw it again!

Sam: [Spence remains silent. Sam takes the marker and draws on the board] Two shooters. Car comes through here. Shooters across each other. Kill each other dead. Oh my, where'd you learn that?

Spence: In the regiment.

Sam: What regiment was that?

Spence: The 22nd Special Air Service.

Sam: What's the color of the boathouse at Hereford?

[repeats]

Spence: I don't like your attitude!

Sam: What's the color of the boathouse -...

Spence: F*ck off!

Sam: What's - -you got the gun. I'm unarmed. Do something. Go ahead. Do something. DO SOMETHING.

[Spence spills the coffee cup and Sam subdues him]

Sam: Tell me about an ambush. I ambushed you with a cup of coffee!

White to move (Averbakh 1979)

What is White's plan and scheme?

Would you believe he is trying to get his King to g1 in a diagram such as

The idea is that when the Black Queen next gives a check, the White Queen interposes along the 2nd rank whilst also delivering a check.

Just like in Ronin ... a cross check ... a cross fire

A sample game may go as