Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. e3 Qb6 5. Nbd2 c4 6. b3 c3 7. Nb1 Nc6 8. Bd3
Bg4 9. O-O Qa5 10. h3 Bxf3 11. Qxf3 e6 12. a3 Rc8 13. Qd1 a6 14. f3 Bb4 15. g4
O-O 16. Kg2 Rfe8 17. Bg5 Nd7 18. f4 Bd6 19. Bh4 Nb4 20. Be1 Nxd3 21. Qxd3 Nf6
22. Nxc3 Qc7 23. Ra2 b5 24. g5 Nh5 25. Ne2 g6 26. c3 Qb7 27. Kg1 a5 28. Ng3 Ng7
29. h4 a4 30. b4 Nf5 31. h5 Qc6 32. Rg2 Qc4 33. Qd2 Nh4 34. Rh2 Nf5 35. Rh3 Re7
36. Rf2 Rd7 37. Rfh2 Bf8 38. Nxf5 exf5 39. Rh4 Bg7 40. R2h3 Kf8 41. hxg6 hxg6
42. Rh7 Re8 43. Qf2 Qd3 44. Qh4 Qd1 45. Rxg7 Ke7 46. Rxf7+ Kxf7 47. Qh7+ Kf8
48. Qh8+ Ke7 *
Position (FEN): 4r2Q/3rk3/6p1/1p1p1pP1/pP1P1P2/P1P1P2R/8/3qB1K1 w - - 4 49
White to move.
Themes:  Endgame Dovetail Mate, Mate in 1 
Puzzle rating: 1567
Best move: Qf6#