Chess puzzle (Crushing)
Moves: 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. Nbd2 e5 7. dxe5 dxe5 8.
Nxe5 Bg4 9. Bxb7 c6 10. Bxa8 Qd5 11. f4 Bh3 12. Rf2 Nbd7 13. c4 Qe6 14. Bxc6
Nxe5 15. Bd5 Nxd5 16. cxd5 Qxd5 17. fxe5 Bxe5 18. e4 Qc5 19. Nf3 Bc7 20. Qd4
Qxd4 *
Position (FEN): 5rk1/p1b2p1p/6p1/8/3qP3/5NPb/PP3R1P/R1B3K1 w - - 0 21
White to move.
Themes:  Middlegame  
Puzzle rating: 822
Best move: Nxd4