[He takes her bishop, and turns his smile down to the board.] See here, [he starts, pointing to his right rook and bishop,] I'm boxing you in. It's a difficult one to set up, because it relies on several important pieces; take one, and there's a hole in the net.

[He gestures, and her queen wiggles.] From there, you can take my rook, my bishop, or-- [He points to the pawn that made it to her side of the board] my new queen. I'd take the rook; it's positioned to take your king, once my bishop has cleared the rest away.