Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. c4 dxc4 3. Qa4+ Bd7 4. Qxc4 Nf6 5. Nf3 e6 6. Bf4 Nc6 7. Nc3 Bb4 8.
a3 Ba5 9. b4 Bb6 10. d5 Ne7 11. dxe6 Bxe6 12. Qb5+ c6 13. Qa4 O-O 14. e4 Bc7
15. Rd1 Qb8 16. Bxc7 Qxc7 17. Bd3 Bg4 18. Be2 Rad8 19. O-O a6 20. Qc2 Bxf3 21.
Bxf3 Ng6 22. Rfe1 Nh4 23. e5 Nxf3+ 24. gxf3 Rxd1 25. Qxd1 Nh5 26. Re4 Qe7 27.
f4 Qh4 28. Qf3 f6 29. f5 Qg5+ 30. Rg4 Qc1+ 31. Kg2 fxe5 32. Ne4 Nf4+ 33. Rxf4
exf4 34. f6 g6 35. Qb3+ Kh8 36. Qe6 f3+ 37. Kg3 Qg1+ 38. Kf4 Qxh2+ 39. Ke3 Qb8
40. f7 Qc7 *
Position (FEN): 5r1k/1pq2P1p/p1p1Q1p1/8/1P2N3/P3Kp2/5P2/8 w - - 1 41
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 909
Best move: Qf6#