The Queen turns again and faces the black pieces. Both Ron and Harry study the game and have some experience playing a miniature version of it.
Harry: Wait a minute.
Ron: You understand right, Harry. Once I make my move, the Queen will take me...then you'll be free to check the King.
There was desperation in his voice, but he showed a brave face for the camera.
Harry: No, Ron! No!
Hermione: What is it?
Harry: He's going to sacrifice himself!
Samuel shouted to give it an authentic feeling.
Hermione: No, Ron, you can't! There must be another way!
Ron closes his eyes.
Ron: Do you want to stop Snape or not? Harry, it's you that has to go on. I know it. Not me, not Hermione, you. Harry nods. Knight...to H-3.
He turns to face Hermione and Harry
Ron's horse moves forward, slides and stops.
Ron: Check.
The Queen turns and advances. Ron breathes faster, clutching the steel reins. The Queen stops.