Chess: A sacrificial rook

Ahmed-McNab, Khanty-Mansiysk 2010. Another attack from the recent Olympiad. Black to play.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 [...]