Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_McDonnell_Attack
Moves: 1. e4 c5 2. f4 Nc6 3. Bb5 e6 4. Bxc6 dxc6 5. Nf3 Bd6 6. e5 Bc7 7. Nc3 b6 8. O-O
Bb7 9. d3 Ne7 10. Ne4 Ng6 11. Bd2 Qd7 12. a4 a5 13. Qe2 O-O-O 14. Rfd1 Qe7 15.
Be3 h6 16. c3 f5 17. exf6 gxf6 18. d4 Bxf4 19. Bxf4 *
Position (FEN): 2kr3r/1b2q3/1pp1ppnp/p1p5/P2PNB2/2P2N2/1P2Q1PP/R2R2K1 b - - 0 19
Black to move.
Themes:  Middlegame  
Puzzle rating: 866
Best move: Nxf4