Chess puzzle (Checkmate)
Moves: 1. Nc3 d5 2. Nf3 d4 3. Nb5 c5 4. g3 Nc6 5. Bg2 g6 6. O-O Bg7 7. d3 a6 8. Na3
Nf6 9. Bd2 Nd5 10. Qc1 O-O 11. Bh6 b5 12. c4 dxc3 13. Bxg7 Kxg7 14. bxc3 Qd6
15. Nd2 f5 16. c4 Nc7 17. cxb5 axb5 18. Qb2+ Rf6 19. Nxb5 Nxb5 20. Qxb5 Nd4 21.
Nc4 Qb8 22. Qe8 Nxe2+ 23. Kh1 Ra7 24. Rfe1 Re6 25. Rab1 Qc7 26. a3 Bb7 27. Qb5
Nd4 28. Rxe6 Bxg2+ 29. Kxg2 Nxb5 30. Rxb5 Qd7 31. Rbb6 Qxd3 32. Ne3 c4 33. Rbc6
c3 34. Re5 Rb7 35. h4 h5 36. Ree6 Kf7 37. Rxg6 Rb2 38. Rge6 c2 39. Re5 Qd2 40.
Rxf5+ Ke8 41. Rd5 Qxe3 42. Rc8+ Kf7 43. Rf5+ Ke6 44. fxe3 c1=Q+ 45. Rf2 Qxc8
46. Rxb2 Qc6+ 47. Kh2 Qe4 48. Re2 Qf3 49. Rg2 Kf5 50. a4 Kg4 51. a5 Qa8 52. Ra2
Qd5 53. Rf2 Qxa5 *
Position (FEN): 8/4p3/8/q6p/6kP/4P1P1/5R1K/8 w - - 0 54
White to move.
Themes:  Endgame, Queen and Rook Endgame Mate in 1 
Puzzle rating: 564
Best move: Rf4#