Chess puzzle (Crushing)
Opening: Sicilian_Defense, Sicilian_Defense_Najdorf_Variation
Moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e6 7. Be3 b5 8. a3
Bb7 9. Bd3 Nbd7 10. O-O d5 11. exd5 Nxd5 12. Nxd5 Bxd5 13. f3 Bd6 14. Be4 Nf6
15. Bg5 Bc7 16. Bxd5 Qxd5 17. Bxf6 gxf6 18. Kh1 Qe5 19. f4 Qf5 *
Position (FEN): r3k2r/2b2p1p/p3pp2/1p3q2/3N1P2/P6P/1PP3P1/R2Q1R1K w kq - 1 20
White to move.
Themes:  Middlegame  
Puzzle rating: 760
Best move: Nxf5