Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nf3 d6 5. O-O O-O 6. b3 c5 7. Bb2 cxd4 8. Nxd4
a6 9. e3 Qc7 10. c4 Nc6 11. Nc3 Bd7 12. Nxc6 bxc6 13. Rc1 a5 14. Ne4 Nxe4 15.
Bxg7 Nxf2 16. Qd4 e5 17. Qd2 Nh3+ 18. Bxh3 Kxg7 19. Bxd7 Qxd7 20. Rfd1 Rad8 21.
c5 d5 22. Qxa5 f5 23. Qc3 Kf6 24. b4 g5 25. Rf1 h5 26. Qd3 e4 27. Qd4+ Kg6 28.
Qd1 h4 29. gxh4 gxh4 30. Kh1 Kf6 31. Qh5 Qf7 32. Qxh4+ Ke5 33. Qf4+ Ke6 34. Rg1
Qh5 35. Qg5 Qf3+ 36. Rg2 Rg8 37. Qh6+ Kd7 38. Qd6+ Kc8 39. Qxc6+ Kb8 40. Qb6+
Ka8 41. Qc6+ Kb8 42. Qb5+ Ka7 43. Qe2 Rxg2 44. Qxg2 Qxe3 45. Rg1 Ka6 46. Qg6+
Kb5 47. Qb6+ Kc4 48. Qxd8 Qf3+ 49. Rg2 Qf1+ 50. Rg1 Qf3+ 51. Rg2 e3 52. Qg8 e2
53. Qe8 Qf1+ 54. Rg1 Qf3+ 55. Rg2 Kd3 56. Qxe2+ Qxe2 57. Rxe2 Kxe2 58. c6 d4
59. c7 d3 60. c8=Q d2 61. Qe8+ Kd1 62. Qd7 f4 63. Qxd2+ Kxd2 64. b5 Ke2 65. b6
f3 66. b7 f2 67. b8=Q *
Position (FEN): 1Q6/8/8/8/8/8/P3kp1P/7K b - - 0 67
Black to move.
Themes: Advanced Pawn Endgame, Queen Endgame Mate in 1 Promotion
Puzzle rating: 715
Best move: f1=Q#