Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. Bf4 Nc6 3. e3 Nf6 4. Nf3 Bg4 5. Nbd2 e6 6. h3 Bh5 7. c3 Bd6 8. Be2
Bxf4 9. exf4 Qd6 10. g3 Ne4 11. Bb5 Nxd2 12. Kxd2 a6 13. Be2 Na5 14. Qa4+ Nc6
15. Ne5 Bxe2 16. Kxe2 O-O 17. h4 f6 18. Nxc6 Qxc6 19. Qc2 Qc4+ 20. Kf3 c5 21.
b3 Qb5 22. a4 Qc6 23. Qd3 cxd4 24. cxd4 b5 25. Rac1 Qb6 26. Rc5 bxa4 27. bxa4
Rac8 28. Rhc1 Qb7 29. a5 Rxc5 30. Rxc5 Rc8 31. Qe3 Kf7 32. Qd3 f5 33. Qc3 Rxc5
34. Qxc5 g6 35. Qb6 Qc8 36. Qa7+ Kf6 37. Qb6 h5 38. Qd6 Qc3+ 39. Kg2 Qxa5 *
Position (FEN): 8/8/p2Qpkp1/q2p1p1p/3P1P1P/6P1/5PK1/8 w - - 0 40
White to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 1503
Best move: Qf8#