Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. g4 d5 5. Bg2 Nc6 6. g5 Ne4 7. Bxe4 dxe4 8. Be3
O-O 9. h4 Na5 10. Qa4 Bxc3+ 11. bxc3 b6 12. Nh3 Qe8 13. Qxe8 Rxe8 14. c5 Nc4
15. Bc1 e5 16. c6 exd4 17. cxd4 Na5 18. d5 Rd8 19. Nf4 Ba6 20. Be3 Nc4 21. Bd4
Nd6 22. e3 Nf5 23. O-O-O Bc4 24. Kb2 Ne7 25. d6 Rxd6 26. Be5 Rxd1 27. Rxd1 Nxc6
28. Bxc7 Rc8 29. Bd6 Rd8 30. Rd2 b5 31. a3 f6 32. Kc3 Kf7 33. Bc5 Rxd2 34. Kxd2
fxg5 35. hxg5 Ne5 36. Bxa7 Nf3+ 37. Kc3 Nxg5 38. a4 Ne6 39. a5 Nxf4 40. exf4 h5
41. Bb8 Ke6 42. Kd4 Kf5 43. a6 h4 44. a7 h3 45. a8=Q h2 46. Be5 h1=Q 47. Qc8+
Kg6 48. Qg4+ Kh6 49. Qg5+ Kh7 *
Position (FEN): 8/6pk/8/1p2B1Q1/2bKpP2/8/5P2/7q w - - 6 50
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 659
Best move: Qxg7#