Chess puzzle (Checkmate)
Moves: 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Nc3 Nf6 5. Nf3 Bg4 6. Bf4 e6 7. Be2 Nc6 8.
Nb5 Rc8 9. O-O a6 10. Nc3 Bd6 11. Bxd6 Qxd6 12. Re1 O-O 13. Ne5 Bxe2 14. Rxe2
b5 15. a3 Ne8 16. Qd3 f6 17. Nxc6 Rxc6 18. Rae1 Nc7 19. Qh3 Re8 20. Nd1 e5 21.
c3 e4 22. f3 Qe6 23. Qxe6+ Rcxe6 24. fxe4 Rxe4 25. Rxe4 Rxe4 26. Rxe4 dxe4 27.
Kf2 f5 28. Ke3 Kf7 29. Kf4 g6 30. Ne3 Ke6 31. b3 Nd5+ 32. Nxd5 Kxd5 33. h3 a5
34. g4 fxg4 35. hxg4 b4 36. axb4 axb4 37. cxb4 Kxd4 38. b5 g5+ 39. Kf5 e3 40.
b6 e2 41. b7 e1=Q 42. b8=Q Qb1+ 43. Kxg5 Qg6+ 44. Kf4 Qf6+ 45. Kg3 Qg5 46. Qb4+
Kd3 47. Qc4+ Kd2 48. Qd4+ Kc2 49. Qc4+ Kb2 50. b4 Qe5+ 51. Kh4 Qe7+ 52. g5 Qe1+
53. Kh5 Qe8+ 54. Kh6 *
Position (FEN): 4q3/7p/7K/6P1/1PQ5/8/1k6/8 b - - 4 54
Black to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 995
Best move: Qg6#