Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 Nc6 3. Nc3 e5 4. Nf3 Bb4 5. dxe5 Ng4 6. Bg5 Be7 7. Bf4 f6 8.
exf6 Bxf6 9. e3 d6 10. Be2 O-O 11. O-O Bxc3 12. bxc3 Qf6 13. Nd4 Nce5 14. Rb1
b6 15. Nb5 Rf7 16. Nxc7 Rb8 17. Nb5 Bf5 18. Rb2 Rd8 19. Rd2 Rfd7 20. h3 Nh6 21.
g4 Be4 22. g5 Qf5 23. gxh6 Qxh3 24. f3 Bc6 25. Rf2 gxh6 26. Rg2+ Kh8 27. Nd4
Bb7 28. Qf1 Ng6 29. Bg3 Rg8 30. Bd3 Rdg7 31. Bxg6 Rxg6 32. Bxd6 Qh5 33. Rxg6
Rxg6+ 34. Rg2 Rxd6 35. Rg4 Rg6 36. Qg2 Kg7 37. Rxg6+ hxg6 38. Qg4 Bxf3 39. Qd7+
Kf6 40. Qe6+ Kg5 41. Qe5+ Kh4 42. Qh2+ Kg4 43. Nxf3 Kxf3 44. Qf2+ Ke4 45. Qf4+
Kd3 46. Qd4+ Kc2 47. e4 Kb2 48. Kf1 Kxa2 49. Ke1 Ka3 50. Qd2 Ka4 51. Kf2 Kb3
52. Ke3 Ka4 *
Position (FEN): 8/p7/1p4pp/7q/k1P1P3/2P1K3/3Q4/8 w - - 8 53
White to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 815
Best move: Qa2#