Chess puzzle (Crushing)
Moves: 1. e4 d6 2. h3 e5 3. Nf3 c5 4. d3 Be7 5. Nc3 Bd7 6. Ne2 Nc6 7. c3 Rc8 8. Ng3
Nf6 9. Be2 Qb6 10. Nh2 O-O 11. O-O d5 12. b3 Rfd8 13. Qc2 Re8 14. Qd1 Rcd8 15.
Qc2 h6 16. Ng4 d4 17. c4 Nh7 18. Nh2 Nf8 19. Bg4 Ne6 20. Nf5 Bg5 21. Bxg5 Nxg5
22. Qd2 Bxf5 23. Bxf5 Qb4 24. Qe2 Kh8 25. h4 Ne6 26. g3 Nf8 27. Bh3 Qb6 28. f4
a6 29. f5 f6 30. Ng4 Qc7 31. Nh2 b5 32. g4 bxc4 33. bxc4 g5 34. fxg6 Nxg6 35.
Rxf6 Nf4 36. Qf3 Rd6 37. Rf5 Qe7 38. g5 hxg5 39. hxg5 Rg6 40. Rxf4 *
Position (FEN): 4r2k/4q3/p1n3r1/2p1p1P1/2PpPR2/3P1Q1B/P6N/R5K1 b - - 0 40
Black to move.
Themes:  Middlegame  
Puzzle rating: 1775
Best move: exf4