Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. O-O Bg4 5. d3 e6 6. Be3 Be7 7. Nbd2 Nf6 8. c4
a6 9. Bxc6+ bxc6 10. Qa4 Qc7 11. Nb3 Bxf3 12. gxf3 Nd7 13. Na5 Rc8 14. Kh1 Ne5
15. f4 Nxd3 16. Qb3 Nxf2+ 17. Rxf2 Qxa5 18. f5 O-O 19. Bd2 Qc7 20. Bc3 e5 21.
Rg1 h6 22. f6 Bd8 23. fxg7 Re8 24. Qd1 f6 25. Qh5 Re7 26. Qxh6 Rxg7 27. Rgf1
Qf7 28. b3 Rc7 29. Ba5 Rd7 30. Bxd8 Rxd8 31. Rxf6 Qd7 32. Rg6 Rf8 33. Rxf8+
Kxf8 34. Rxg7 Qxg7 35. Qxd6+ Qe7 36. Qxc6 Kg8 37. Qc8+ Kh7 38. Qxa6 Qf7 39. Qc6
*
Position (FEN): 8/5q1k/2Q5/2p1p3/2P1P3/1P6/P6P/7K b - - 2 39
Black to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 944
Best move: Qf1#