Chess puzzle (Checkmate)
Moves: 1. e4 d6 2. d4 Nf6 3. Bg5 Nxe4 4. Bh4 g6 5. c3 Bg7 6. Nf3 O-O 7. Bc4 Bg4 8. h3
Bxf3 9. Qxf3 Nf6 10. Qxb7 Nbd7 11. b3 Nb6 12. Nd2 e5 13. dxe5 dxe5 14. Rd1 Qe7
15. O-O Bh6 16. Ne4 Bg7 17. Nxf6+ Bxf6 18. Bxf6 Qxf6 19. Qxc7 Nxc4 20. Qxc4
Rac8 21. Qb4 e4 22. c4 h5 23. Qb7 Rb8 24. Qxe4 Qb2 25. Qb1 Qc3 26. Rc1 Qb4 27.
Qc2 Rbe8 28. Rcd1 Re5 29. Rd5 Re1 30. Rb5 Rxf1+ 31. Kxf1 Qd6 32. Rd5 Qh2 33. f3
Re8 34. Qd1 Kh7 35. Kf2 h4 36. a4 Qg3+ 37. Kf1 Qh2 38. Rd7 Kg7 39. Qd4+ Kg8 40.
Qd2 a5 41. c5 Qh1+ 42. Kf2 Qb1 43. Rd8 Rxd8 44. Qxd8+ Kg7 45. Qd4+ Kf8 46. Qc4
Qb2+ 47. Kg1 Qa1+ 48. Kh2 Qe5+ 49. f4 Qe1 50. Qd3 Qc1 51. Qd6+ Kg8 52. c6 Qe3
53. Qd8+ Kg7 54. Qxh4 Qxb3 55. c7 Qc4 56. Qd8 Qxf4+ 57. Kg1 Qe3+ 58. Kf1 Qf4+
59. Ke2 Qe4+ 60. Kd1 Qxa4+ 61. Kd2 Qa2+ 62. Kd3 Qb1+ 63. Kd4 Qb2+ 64. Kc5 Qb4+
65. Kc6 Qc4+ 66. Kd7 *
Position (FEN): 3Q4/2PK1pk1/6p1/p7/2q5/7P/6P1/8 b - - 11 66
Black to move.
Themes:  Endgame, Queen Endgame Dovetail Mate, Mate in 1 
Puzzle rating: 1492
Best move: Qe6#