Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e6 6. Bc4 a6 7. O-O b5 8. Bb3
Bc5 9. Qe2 Nge7 10. Rd1 O-O 11. Bf4 Ng6 12. Bg3 Re8 13. Rac1 Be7 14. Bd6 Bxd6
15. Rxd6 Qe7 16. Rcd1 Nf4 17. Qe3 b4 18. Na4 Nd5 19. exd5 Qxd6 20. dxc6 Qxc6
21. Ne5 Qc7 22. Nb6 Rb8 23. Nbxd7 Rb5 24. Ba4 Bxd7 25. Bxb5 Bxb5 26. b3 Qc2 27.
Rc1 Rd8 28. h3 Rd1+ 29. Rxd1 Qxd1+ 30. Kh2 Qd6 31. g3 f6 32. Nc4 Bxc4 33. bxc4
Qc6 34. Qd3 Kf7 35. Qd4 Ke7 36. f4 Qa4 37. Qa7+ Kf8 38. Qb8+ Kf7 39. Qc7+ Kg6
40. h4 Qxa2+ 41. Kh3 b3 42. h5+ Kh6 43. Qf7 Qc2 44. Qxe6 b2 45. Qe3 Qf5+ 46. g4
Qa5 47. f5+ g5 48. Qe6 Qa3+ 49. Kg2 b1=Q *
Position (FEN): 8/7p/p3Qp1k/5PpP/2P3P1/q7/6K1/1q6 w - - 0 50
White to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 615
Best move: Qxf6#