Chess puzzle (Advantage)
Moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 a6 7. h4 h5 8. Be2
Nf6 9. f3 b5 10. a3 Bd7 11. Qd2 Nc6 12. O-O-O b4 13. axb4 Nxb4 14. Nb3 a5 15.
Nb5 Rb8 16. N3d4 e5 17. Nxd6+ Ke7 18. N4b5 Bxb5 19. Nxb5 Qxd2+ 20. Rxd2 Rhc8
21. Nc3 *
Position (FEN): 1rr5/4kpb1/5np1/p3p2p/1n2P2P/2N1BP2/1PPRB1P1/2K4R b - - 2 21
Black to move.
Themes:  Middlegame  
Puzzle rating: 1520
Best move: Rxc3