Chess puzzle (Advantage)
Moves: 1. e4 e5 2. Bc4 Nf6 3. Nc3 c6 4. a3 b5 5. Bb3 Ba6 6. Nf3 d6 7. d3 Nbd7 8. Ng5
d5 9. exd5 Nxd5 10. Qf3 f6 11. Ne6 Qe7 12. Bxd5 Rc8 13. Bxc6 Qxe6 14. Bxd7+
Qxd7 15. O-O Be7 16. Qg3 Bd8 17. Be3 Bc7 18. Ne4 Bb8 19. Rac1 O-O 20. Bh6 *
Position (FEN): 1br2rk1/p2q2pp/b4p1B/1p2p3/4N3/P2P2Q1/1PP2PPP/2R2RK1 b - - 11 20
Black to move.
Themes:  Middlegame  
Puzzle rating: 1641
Best move: f5