This is from a famous game between young Bobby Fischer and Ruben Shocron at Mar del Plata in 1959.
White to move! How should white proceed?
Daily Chess Improvement: Brilliant Attacking Chess!
About Author
1 B a7-R a8 2 B c6-Rxa7 3 Rxg6+ Wins the Queen
White is up a piece but his rook is pinned
Black cannot take the bishop because then 2. Rxg6+ discovers an attack on the Queen