Chess puzzle (Checkmate)
Moves: 1. e4 c6 2. Ne2 d5 3. e5 Bf5 4. Ng3 Bg6 5. h4 h5 6. e6 fxe6 7. d4 Nf6 8. Bd3
Bxd3 9. Qxd3 Qd6 10. Nd2 Na6 11. Nf3 O-O-O 12. Ne5 Qc7 13. Nf7 Rg8 14. Nxd8
Kxd8 15. c3 e5 16. dxe5 Qxe5+ 17. Ne2 Qd6 18. O-O e5 19. Bg5 Nc5 20. Qf3 Be7
21. Ng3 Rf8 22. Nxh5 e4 23. Qe2 Nd3 24. Nxg7 Qe5 25. f4 Bc5+ 26. Kh1 Qe7 27.
Nf5 Qe6 28. Nd4 Qd7 29. Qh5 Kc8 30. Qh6 Ng4 31. Qe6 Ndf2+ 32. Rxf2 Nxf2+ 33.
Kg1 Nd3 34. Qxd7+ Kxd7 35. h5 Nxf4 36. h6 Ne2+ 37. Kh2 Bd6+ 38. Kh3 Ng3 39. Kg4
Be5 40. Nb3 b6 41. Nd2 Rg8 42. h7 Rh8 43. Bf4 Bxf4 44. Kxf4 Nh5+ 45. Kg5 Rxh7
46. g4 Ng3 47. Kg6 Re7 48. g5 Ne2 49. Kf6 Nf4 50. g6 Re6+ 51. Kf5 Nxg6 52. Rg1
Ne7+ 53. Kf4 Rf6+ 54. Ke5 Rf5+ 55. Kd4 c5+ 56. Ke3 Rf3+ 57. Nxf3 Nf5+ 58. Kf4
exf3 59. Kxf5 f2 60. Rf1 d4 61. Rxf2 Kd6 62. cxd4 cxd4 63. Ke4 Kc5 64. Rd2 b5
65. Rxd4 a5 66. Ke5 b4 67. Rd5+ Kc4 68. Rd4+ Kc5 69. Ke4 a4 70. Kd3 Kb5 71. Rc4
a3 72. Kd4 axb2 73. Rc5+ Ka4 74. Kc4 b1=Q 75. Kd5 Qd3+ 76. Kc6 Qe4+ 77. Kb6 Qg4
*
Position (FEN): 8/8/1K6/2R5/kp4q1/8/P7/8 w - - 6 78
White to move.
Themes:  Endgame, Queen and Rook Endgame Mate in 1 
Puzzle rating: 542
Best move: Ra5#