Chess puzzle (Advantage)
Moves: 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 Be7 5. Nc3 Nf6 6. Be2 O-O 7. O-O Re8 8.
h3 Bf8 9. Bd3 Nc6 10. Nxc6 bxc6 11. Re1 Nd7 12. Be3 Ne5 13. Be2 Bb7 14. Bd4 Qf6
15. Qd2 Qg6 16. Bxe5 Rxe5 17. Bf3 Be7 18. Ne2 Bg5 19. Qc3 c5 20. Bg4 Bxe4 *
Position (FEN): r5k1/p1p2ppp/3p2q1/2p1r1b1/4b1B1/2Q4P/PPP1NPP1/R3R1K1 w - - 0 21
White to move.
Themes:  Middlegame  
Puzzle rating: 1474
Best move: f4