Sacrificing a chess piece is a nerve-racking business, but think of the warm glow when it pays off. RB If chess pieces could talk, they would be screaming at me something like: “Can’t you take a hint, dummy? We’re all pointing in one direction – at c3!” And I would say back to them: “Yes, thank you, I see that, but I have to tell you that I am always nervous of sacrificing a chess piece when I can’t calculate a forced mate or win of material.” But let’s try to get the nerves under control and venture the less valuable piece first: 1…Bxc3. What’s to stop White playing 2 bxc3, and if 2…Qxc3 3 Bb3, with threats against f7? That doesn’t seem to help Black much, so what about the rook: …

Source: GameKnot online chess news