Chess puzzle (Crushing)
Moves: 1. e4 c6 2. f4 d5 3. e5 Bf5 4. Be2 d4 5. Bc4 e6 6. Nf3 Nh6 7. O-O Qb6 8. d3 Ng4
9. Re1 Be7 10. Qe2 Nd7 11. a3 c5 12. h3 Nh6 13. Nbd2 Qc6 14. Nf1 Nb6 15. Ba2
Nd5 16. Ng3 b5 17. Ng5 Bg6 18. N3e4 Nf5 19. Bxd5 Qxd5 20. b3 h6 21. Nf3 Bh5 22.
Qf2 Bxf3 23. Qxf3 Nh4 24. Qf2 O-O-O 25. b4 g5 26. bxc5 gxf4 27. Bxf4 Rhg8 28.
g4 h5 29. g5 Ng6 30. Nd6+ Bxd6 31. exd6 *
Position (FEN): 2kr2r1/p4p2/3Pp1n1/1pPq2Pp/3p1B2/P2P3P/2P2Q2/R3R1K1 b - - 0 31
Black to move.
Themes:  Middlegame  
Puzzle rating: 974
Best move: Nxf4