Chess puzzle (Checkmate)
Moves: 1. Nf3 d5 2. d4 Nc6 3. e3 Nf6 4. Bb5 Bd7 5. Nc3 e6 6. Qe2 Bb4 7. Bd2 O-O 8.
Bxc6 Bxc6 9. Nb1 Bxd2+ 10. Nbxd2 Ne4 11. Nxe4 dxe4 12. Nd2 Qg5 13. g3 f5 14. h4
Qg4 15. Qxg4 fxg4 16. O-O-O Bd5 17. Rdf1 Rf7 18. b3 Raf8 19. Rh2 h5 20. c4 Bc6
21. b4 b5 22. Kc2 bxc4 23. Nxc4 Bb5 24. Kc3 Rf3 25. a4 Bxc4 26. Kxc4 Rxe3 27.
fxe3 Rxf1 28. Rc2 Rf3 29. Kb5 Rxe3 30. Rxc7 Rxg3 31. Re7 e3 32. Rxe6 Rf3 33. d5
g3 34. d6 e2 35. d7 Rd3 36. Re8+ Kf7 37. Rxe2 Rxd7 38. Re3 g2 39. Rg3 Rd2 40.
Ka6 Kf6 41. Kxa7 Kf5 42. b5 Kf4 43. Rxg7 Kf3 44. a5 Kf2 45. b6 Rd3 46. a6 Rg3
47. Rf7+ Kg1 48. b7 Kh2 49. b8=Q g1=Q+ 50. Ka8 Qg2+ 51. Rb7 Kh3 52. Qf4 Rg8+
53. Ka7 Qg1+ 54. Rb6 Rg7+ 55. Ka8 Qxb6 56. Qf3+ Kxh4 57. Qf4+ Rg4 58. Qh2+ Kg5
59. Qd2+ Rf4 60. Qg2+ Kf5 61. Qh3+ Ke5 62. Qxh5+ Rf5 63. Qe2+ Kd6 64. Qd3+ Rd5
65. Qg6+ Kc5 66. Qc2+ Kb5 67. Qb3+ Kc6 68. Qc4+ Qc5 69. Qa4+ Qb5 70. Qc2+ Rc5
71. Qg6+ Kd5 72. Qf7+ Kd4 73. Qf4+ Kc3 74. Qe3+ Kb4 75. Qd4+ Qc4 76. Qb2+ Qb3
77. Qd4+ Rc4 78. Qd6+ Kc3 79. Qe5+ Kc2 80. Qe2+ Kb1 81. Qf1+ Rc1 82. Qf5+ Ka2
83. Qa5+ Kb2 84. Qe5+ Rc3 85. Qe2+ Ka3 86. Qe7+ Qb4 87. Qxb4+ Kxb4 88. a7 Rb3
89. Kb8 Ka5+ 90. Kc8 Rc3+ 91. Kb8 Rb3+ 92. Kc8 Rc3+ 93. Kb8 Rb3+ 94. Kc7 Rc3+
95. Kb7 Rb3+ 96. Kc8 Rc3+ 97. Kb8 Rb3+ 98. Kc8 Rc3+ 99. Kd8 Rh3 100. Kc7 Rh7+
101. Kb8 Kb6 102. a8=Q *
Position (FEN): QK6/7r/1k6/8/8/8/8/8 b - - 0 102
Black to move.
Themes:  Endgame, Queen and Rook Endgame Mate in 1 
Puzzle rating: 870
Best move: Rh8#