Chess puzzle (Advantage)
Moves: 1. e4 c5 2. Nc3 e6 3. f4 d5 4. Bb5+ Bd7 5. Bxd7+ Qxd7 6. d3 Nc6 7. Nf3 Be7 8.
O-O b5 9. Nxb5 Rb8 10. Nc3 dxe4 11. Nxe4 Nf6 12. Qe2 Nd4 13. Nxd4 cxd4 14. c3
dxc3 15. bxc3 O-O 16. Nxf6+ Bxf6 17. Bd2 Rb2 18. d4 Qd5 19. a4 Rc8 20. Qd3 *
Position (FEN): 2r3k1/p4ppp/4pb2/3q4/P2P1P2/2PQ4/1r1B2PP/R4RK1 b - - 2 20
Black to move.
Themes:  Middlegame  
Puzzle rating: 1151
Best move: Rxc3