Chess puzzle (Checkmate)
Moves: 1. c4 Nf6 2. g3 d5 3. Bg2 c6 4. Nf3 dxc4 5. O-O Nbd7 6. Qc2 Nb6 7. Na3 Be6 8.
Ne5 Qd4 9. Nxc6 Qd6 10. Na5 Nfd5 11. N5xc4 Nxc4 12. Qxc4 a6 13. Qe4 b5 14. d3
g6 15. Bf4 Qd7 16. Be5 f6 17. Bf4 Bg7 18. Qd4 O-O 19. Rac1 Nxf4 20. Qxf4 Rac8
21. Qd2 Bxa2 22. Nc2 f5 23. Nb4 Bf7 24. Nxa6 Qa7 25. Ra1 Qd4 26. b4 Qb6 27. Nc5
Rfd8 28. Ra6 Qc7 29. Rc1 Qe5 30. Ra7 Qb2 31. Rc2 Qd4 32. Rb7 e5 33. Rxb5 e4 34.
e3 Qd6 35. d4 Ra8 36. Nb7 Qd7 37. Bf1 Re8 38. Na5 Re6 39. Rbc5 Rb8 40. b5 Ree8
41. Qc3 Qa7 42. Nc6 Qb6 43. Nxb8 Qxb8 44. Rc8 Qb6 45. Rc6 Qa7 46. b6 Qb7 47.
Qa5 Ra8 48. Qb5 Be8 49. Qc4+ Kh8 50. Qb4 Bxc6 51. Bc4 Ra1+ 52. Bf1 Qf7 53. Rxc6
Rxf1+ 54. Kxf1 h5 55. Rc8+ Kh7 56. Qc3 Qa2 57. b7 Qb1+ 58. Qc1 Qxb7 59. Rc7 Qb4
60. d5 Kh6 61. Qc4 Qb1+ 62. Qc1 Qb5+ 63. Qc4 Qb1+ 64. Kg2 Qd1 65. Qc1 Qf3+ 66.
Kf1 Qh1+ 67. Ke2 Qf3+ 68. Kd2 Qxf2+ 69. Kd1 Qf1+ 70. Kc2 *
Position (FEN): 8/2R3b1/6pk/3P1p1p/4p3/4P1P1/2K4P/2Q2q2 b - - 3 70
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1388
Best move: Qd3#