Robert James Fischer v. Mikhail Tal (Sicilian Defense: Fischer-Sozin Attack. Flank Variation; Bled, Zagreb & Belgrade YUG, 1959)
Take a good look at Fischer's 12.Nxf5 and evaluate the soundness of the sacrifice and the resulting position. In this game, Fischer has thrown everything at Tal, but the magician from Riga defended well and won. A very nice game.