Chess puzzle (Checkmate)
Moves: 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 c6 6. O-O d6 7. d4 Bf5 8. Re1
Ne4 9. Nh4 Nxc3 10. bxc3 Bd7 11. e4 e5 12. d5 c5 13. f3 Qc8 14. f4 f6 15. f5
gxf5 16. Nxf5 Bxf5 17. exf5 Qxf5 18. Rf1 Qg6 19. Qe2 f5 20. Bd2 Nd7 21. Rae1
Rae8 22. Rf2 f4 23. g4 Nf6 24. h3 h5 25. Be4 Qg5 26. Bf5 hxg4 27. hxg4 Nh5 28.
Be6+ Rxe6 29. dxe6 Ng3 30. Qd3 Qxg4 31. Rh2 Ne4+ 32. Kf1 Nxd2+ 33. Qxd2 Qxe6
34. Qg2 Rf7 35. Qg5 Qf6 36. Qh5 Kf8 37. Ree2 Qf5 38. Qh4 Qb1+ 39. Re1 Qd3+ 40.
Ree2 f3 *
Position (FEN): 5k2/pp3rb1/3p4/2p1p3/2P4Q/2Pq1p2/P3R2R/5K2 w - - 0 41
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 903
Best move: Qd8#