Chess puzzle (Crushing)
Opening: Sicilian_Defense, Sicilian_Defense_Delayed_Alapin
Moves: 1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Qe2 Nc6 5. e5 dxe5 6. Nxe5 Nxe5 7. Qxe5 e6 8.
Bb5+ Bd7 9. Na3 a6 10. Bxd7+ Qxd7 11. O-O b5 12. Nc2 Bd6 13. Qe2 Bc7 14. d4 c4
15. Qf3 O-O 16. Bg5 Qd6 17. g3 Nd7 18. Ne3 f6 19. Bf4 e5 *
Position (FEN): r4rk1/2bn2pp/p2q1p2/1p2p3/2pP1B2/2P1NQP1/PP3P1P/R4RK1 w - - 0 20
White to move.
Themes:  Middlegame  
Puzzle rating: 2005
Best move: Nf5