Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 d6 5. Bg2 e5 6. Nc3 Be7 7. Nf3 O-O 8. h4 Bg4
9. Qc2 h6 10. Nh2 Qd7 11. f3 Bf5 12. e4 Bg6 13. g4 h5 14. g5 Ne8 15. Nf1 f6 16.
Bh3 f5 17. Ne3 Nc7 18. Nxf5 Qd8 19. Bd2 Nca6 20. a3 Nd7 21. Nb5 Ndb8 22. O-O-O
Nc7 23. Nc3 a6 24. Rdf1 Nd7 25. f4 b5 26. fxe5 Nxe5 27. cxb5 axb5 28. Nb1 c4
29. Bc3 Nd3+ 30. Kd1 b4 31. Bxb4 Ne5 32. Bc3 Nd3 33. Bxg7 Rf7 34. Nh6+ Kxg7 35.
Nxf7 Bxf7 36. Qc3+ Kg6 37. Rf5 Rb8 38. b4 Nb5 39. Qa1 Ra8 40. Rhf1 Ne5 41. Rxe5
dxe5 42. Qxe5 Nd6 43. Nc3 Rxa3 44. Rxf7 Nxf7 *
Position (FEN): 3q4/4bn2/6k1/3PQ1Pp/1Pp1P2P/r1N4B/8/3K4 w - - 0 45
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1670
Best move: Bf5#