Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. Bf4 d5 3. e3 c5 4. c3 g6 5. Nf3 Bg7 6. Bd3 O-O 7. dxc5 Nc6 8. Nbd2
Bg4 9. Qc2 Re8 10. h3 Bd7 11. O-O-O e5 12. Bg5 e4 13. Bxe4 dxe4 14. Bxf6 Bxf6
15. Nd4 Qc7 16. g4 Ne5 17. f4 Nd3+ 18. Kb1 Nf2 19. Rhg1 Nxd1 20. Qxd1 Qxc5 21.
g5 Bg7 22. h4 b5 23. h5 b4 24. N2b3 Qc4 25. cxb4 Ba4 26. hxg6 fxg6 27. f5 Rad8
28. f6 Bf8 29. Rh1 Bxb4 30. Ka1 Bxb3 31. axb3 Qa6+ 32. Kb1 Qd3+ 33. Ka1 Qxe3
34. Rxh7 Kxh7 35. Qh1+ Kg8 36. Qh6 Re7 37. Nc6 Red7 38. Nxd8 Qxb3 39. Qxg6+ Kf8
40. Qh6+ Ke8 41. Qh8+ Bf8 42. f7+ Ke7 *
Position (FEN): 3N1b1Q/p2rkP2/8/6P1/4p3/1q6/1P6/K7 w - - 1 43
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1595
Best move: Qf6#