Chess puzzle (Checkmate)
Moves: 1. d4 g6 2. c4 Bg7 3. Nc3 c6 4. e4 d6 5. f4 Nf6 6. Nf3 O-O 7. Bd3 a6 8. O-O b5
9. e5 Ne8 10. cxb5 cxb5 11. Be4 Ra7 12. Be3 Bb7 13. d5 Ra8 14. Nd4 dxe5 15.
fxe5 Bxe5 16. Nc6 Bxc6 17. dxc6 Qc7 18. Nd5 Bxh2+ 19. Kh1 Qe5 20. Bf3 Nc7 21.
Bd4 Qd6 22. Nxe7+ Qxe7 23. Kxh2 Rd8 24. Kg1 Ne6 25. Re1 Rxd4 26. Qxd4 Nxd4 27.
Rxe7 Nxf3+ 28. gxf3 Nxc6 29. Rc7 Nd4 30. Kf2 Ne6 31. Rc6 a5 32. Rac1 a4 33.
Rc8+ Rxc8 34. Rxc8+ Kg7 35. Rb8 Nd4 36. Ke3 Nc2+ 37. Kd3 Ne1+ 38. Ke2 Nc2 39.
Kd2 Nd4 40. Kd3 Nxf3 41. Rxb5 h5 42. Ke3 Nh4 43. Rb4 Nf5+ 44. Kf4 h4 45. Rxa4
f6 46. Kg4 Ne3+ 47. Kxh4 g5+ 48. Kg3 Kg6 49. Re4 Nd5 50. a4 f5 51. Rd4 f4+ 52.
Kf3 Ne3 53. a5 Kf5 54. a6 g4+ 55. Kf2 Nc2 56. Rd5+ Ke4 57. Ra5 g3+ 58. Kg2 Ne1+
59. Kf1 g2+ 60. Kg1 f3 61. Ra4+ Kf5 62. Kf2 Nd3+ 63. Kg1 Nxb2 64. Ra5+ Kg4 65.
a7 Kg3 66. Rh5 *
Position (FEN): 8/P7/8/7R/8/5pk1/1n4p1/6K1 b - - 2 66
Black to move.
Themes: Advanced Pawn Endgame Mate in 1 
Puzzle rating: 821
Best move: f2#