Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. Re1 O-O 6. c3 h6 7. d4 exd4 8.
cxd4 Bb4 9. Nc3 d6 10. h3 Re8 11. a3 Ba5 12. Bb3 Bxc3 13. bxc3 Nxe4 14. Qd3 Bf5
15. Qc4 Re7 16. Be3 Na5 17. Qb4 Nxb3 18. Qxb3 b6 19. Nh4 Bh7 20. f3 Ng3 21. Bf2
Rxe1+ 22. Rxe1 Nf5 23. Nxf5 Bxf5 24. a4 a5 25. Qd5 Be6 26. Qe4 c5 27. d5 Bd7
28. Qf4 Qf6 29. Bg3 Bxa4 30. Qxd6 Qxc3 31. Qxb6 Qd4+ 32. Bf2 Qxd5 33. Bxc5 Rc8
34. Bf2 Bc6 35. Ra1 a4 36. Bd4 Ra8 37. Qb2 f6 38. Bf2 Qd3 39. Qb6 Bb5 40. Qb7
Ra6 41. Re1 a3 42. Qc8+ Kh7 43. Qg4 a2 44. Re7 a1=Q+ 45. Kh2 Qe5+ 46. Rxe5 fxe5
47. Bg3 Ra1 48. Bxe5 Rb1 *
Position (FEN): 8/6pk/7p/1b2B3/6Q1/3q1P1P/6PK/1r6 w - - 1 49
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 544
Best move: Qxg7#