Chess puzzle (Advantage)
Moves: 1. e4 e5 2. Nf3 d6 3. d4 Bg4 4. dxe5 Bxf3 5. Qxf3 dxe5 6. Bc4 Nf6 7. Bg5 Be7 8.
Nc3 c6 9. O-O O-O 10. Qg3 Nbd7 11. Rad1 Qc7 12. Be2 Rad8 13. Bh6 Ne8 14. Be3
Bc5 15. Rxd7 Rxd7 16. Bxc5 Nd6 17. Rd1 b6 18. Bb4 c5 19. Nd5 Qd8 20. Bd2 *
Position (FEN): 3q1rk1/p2r1ppp/1p1n4/2pNp3/4P3/6Q1/PPPBBPPP/3R2K1 b - - 3 20
Black to move.
Themes:  Middlegame  
Puzzle rating: 819
Best move: Nxe4