bishopfork6r
Yes. If the knight takes the bishop this stops the fork. Diagram 1 shows the position we had on the last page. Diagram 2 shows it after the knight has taken the bishop.
Diagram1 Diagram 2
Now the white queen can take the knight Qxb7 (diagram3) and she is forking the 2 rooks.
In diagram 4 black has moved his rook from a6 to a8. The 2 rooks are guarding each other so they are safe.
Diagram 3 Diagram4
