Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 c5 7. Nf3 Nc6 8.
Be2 cxd4 9. cxd4 Qa5+ 10. Bd2 Bb4 11. a3 Bc3 12. Ra2 O-O 13. O-O b5 14. Bxc3
Qxc3 15. Bxb5 Na5 16. Qd3 Qc7 17. Rc2 Qb6 18. Rfc1 Bb7 19. Ne5 Qd6 20. Nc6 Rfc8
21. e5 Qc7 22. h3 Nxc6 23. Bxc6 Bxc6 24. Rxc6 Qb7 25. Rxc8+ Rxc8 26. Rxc8+ Qxc8
27. a4 h6 28. d5 Qc1+ 29. Kh2 exd5 30. Qxd5 Qf4+ 31. Kg1 Qxa4 32. e6 Qe8 33.
exf7+ Qxf7 34. Qd4 Kh8 35. Qd8+ Kh7 36. Qd3+ g6 37. Qd4 Qb7 38. g4 Qc7 39. h4
a5 40. Qa4 Kg7 41. Qd4+ Kh7 42. Qa4 Qd8 43. h5 gxh5 44. gxh5 Qg5+ 45. Kf1 Qxh5
46. Qd7+ Kg6 47. Qe6+ Kg5 48. Qe5+ Kh4 *
Position (FEN): 8/8/7p/p3Q2q/7k/8/5P2/5K2 w - - 6 49
White to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 1399
Best move: Qg3#