Chess puzzle (Advantage)
Moves: 1. e4 c5 2. Nc3 Nc6 3. Nf3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Nxc6 bxc6 7. Qd3 a5 8.
f4 Ba6 9. Qe3 Bxf1 10. Rxf1 Rb8 11. e5 Qb6 12. Qxb6 Rxb6 13. Kf2 Nh6 14. g3 O-O
15. Kf3 Nf5 16. Rd1 d5 17. g4 Nh6 18. h4 e6 19. Na4 Rb4 20. Bd2 *
Position (FEN): 5rk1/5pbp/2p1p1pn/p2pP3/Nr3PPP/5K2/PPPB4/R2R4 b - - 3 20
Black to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 1165
Best move: Rxa4