Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. Nf3 e6 3. Bf4 a6 4. e3 Nc6 5. Bd3 h6 6. Ne5 Bd7 7. Nd2 Nf6 8. Bg3
Bd6 9. f4 Qe7 10. c3 Nd8 11. Qf3 c5 12. O-O c4 13. Bc2 b5 14. Bh4 O-O 15. Ng4
Kh8 16. Bxf6 gxf6 17. Nxh6 f5 18. Qh5 Kg7 19. Rf3 Rh8 20. Rg3+ Kf8 21. Nf3 Qf6
22. Ng5 Rxh6 23. Nh7+ Rxh7 24. Qxh7 Ke7 25. Rg8 Rc8 26. a4 Nc6 27. Rg7 b4 28.
Rf1 bxc3 29. bxc3 Be8 30. Rf3 Kd8 31. Rh3 Bf8 32. Rg8 Qe7 33. Qh8 Kd7 34. Rxf8
Na5 35. Rh7 Nb3 36. Rg7 Na1 37. Bd1 Rb8 38. Bh5 Rb1+ 39. Kf2 Qh4+ 40. Rg3 Qxh2
41. Be2 Qg1+ 42. Kf3 Rf1+ 43. Bxf1 *
Position (FEN): 4bR1Q/3k1p2/p3p3/3p1p2/P1pP1P2/2P1PKR1/6P1/n4Bq1 b - - 0 43
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 799
Best move: Qxf1#