Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bc4 d6 5. d3 e5 6. Bg5 Be7 7. a3 O-O 8. O-O
a6 9. Nh4 b5 10. Ba2 Nd4 11. Nf5 Bxf5 12. exf5 h6 13. Bh4 Nxf5 14. Bg3 Nxg3 15.
fxg3 Qd7 16. Qf3 Bd8 17. Nd5 Rb8 18. Nxf6+ Bxf6 19. Bd5 Qc7 20. c3 c4 21. d4
exd4 22. cxd4 Bxd4+ 23. Kh1 Bxb2 24. Ra2 Bf6 25. Be4 Rbd8 26. Qf5 Rfe8 27. Qh7+
Kf8 28. Bd5 Re5 29. Rxf6 Rxd5 30. Qh8+ Ke7 31. Re2+ Re5 32. Qxg7 Rd7 33. Rxf7+
Ke6 34. Qf6+ Kd5 35. Rd2+ Kc6 36. Rxd6+ Qxd6 37. Qf3+ Kc7 38. Rxd7+ Qxd7 39. h3
Rf5 40. Qe3 Qd6 41. Qa7+ Kc6 42. Qxa6+ Kc5 43. Qa7+ Qb6 44. Qe7+ Qd6 45. Qe3+
Qd4 46. Qxh6 Rf6 47. Qg5+ Kb6 48. Kh2 Ka5 49. Qc1 Rd6 50. Qe1+ Qd2 51. Qb1 Ka4
52. h4 Qa5 53. Kh3 Qa7 *
Position (FEN): 8/q7/3r4/1p6/k1p4P/P5PK/6P1/1Q6 w - - 3 54
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 898
Best move: Qb4#