Chess puzzle (Crushing)
Opening: Sicilian_Defense, Sicilian_Defense_OKelly_Variation
Moves: 1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nb3 Bb4 7. Bg5 O-O 8.
Qd3 Nc6 9. a3 Be7 10. Bxf6 Bxf6 11. Nd5 Bg5 12. Be2 d6 13. O-O f5 14. Qc4 Be6
15. f3 Be3+ 16. Kh1 f4 17. Qd3 Ba7 18. Rad1 Qh4 19. Nc7 Nd4 *
Position (FEN): r4rk1/bpN3pp/p2pb3/4p3/3nPp1q/PN1Q1P2/1PP1B1PP/3R1R1K w - - 6 20
White to move.
Themes:  Middlegame  
Puzzle rating: 1655
Best move: Nxd4