Bobby Fisher Teaches Chess - Frame 195

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xXDragoneqXx
So I was reading through the book when I came across this instructional frame (https://ibb.co/0BmxxfL) and got a bit confused. It says white’s only chance of winning is by sacrificing their Queen. But what about using the bishop to capture f7? If I’m looking at this correctly black has three options: Capture the bishop with the king (which they can’t do because of the Queen), capture the bishop with the rook (after which white’s Queen can move to e8 and mate) or flee to h8 (after which white Queen can capture the rook and mate). Am I missing something?
notmtwain
xXDragoneqXx wrote:
So I was reading through the book when I came across this instructional frame (https://ibb.co/0BmxxfL) and got a bit confused. It says white’s only chance of winning is by sacrificing their Queen. But what about using the bishop to capture f7? If I’m looking at this correctly black has three options: Capture the bishop with the king (which they can’t do because of the Queen), capture the bishop with the rook (after which white’s Queen can move to e8 and mate) or flee to h8 (after which white Queen can capture the rook and mate). Am I missing something?

Sorry but if you take on f7 with the bishop first, he takes with the rook and you check on e8 or d8 with the queen, there's nothing to pin the rook.

It can just retreat and stop the mate.