Chess puzzle (Advantage)
Moves: 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3 dxc3 5. Nxc3 Bb4 6. Bc4 Nf6 7. e5 Qe7 8.
O-O Ng4 9. Nd5 Qd8 10. h3 Ngxe5 11. Nxe5 Nxe5 12. Nxb4 O-O 13. Bb3 a5 14. Nd5
c6 15. Ne3 d5 16. Bc2 Be6 17. b3 Qf6 18. Rb1 Rad8 19. Bb2 d4 20. Bxd4 *
Position (FEN): 3r1rk1/1p3ppp/2p1bq2/p3n3/3B4/1P2N2P/P1B2PP1/1R1Q1RK1 b - - 0 20
Black to move.
Themes:  Middlegame  
Puzzle rating: 1418
Best move: Rxd4