Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Bg4 6. h3 h5 7. d3 Qf6 8. Be3
Bxf3 9. Qxf3 Qxf3 10. gxf3 Bd6 11. Nd2 Ne7 12. Kh2 f6 13. Rg1 g5 14. h4 gxh4
15. Nc4 Kf7 16. f4 exf4 17. Nxd6+ cxd6 18. Bxf4 Ke6 19. Kh3 Rag8 20. Kxh4 Ng6+
21. Kg3 Ne5+ 22. Kh3 Nf3 23. Rg3 Rxg3+ 24. fxg3 Rg8 25. Rf1 Nd4 26. c3 Ne2 27.
Rf2 Nxf4+ 28. Rxf4 Rg5 29. Kh4 c5 30. a4 d5 31. exd5+ Rxd5 32. Rf3 b5 33. axb5
axb5 34. g4 hxg4 35. Kxg4 Rg5+ 36. Kf4 Rf5+ 37. Ke4 Rxf3 38. Kxf3 Ke5 39. Ke3
f5 40. Kf3 f4 41. Kg4 c4 42. d4+ Ke4 43. d5 f3 44. d6 f2 45. d7 f1=Q 46. d8=Q
Qf3+ 47. Kh4 Qf2+ 48. Kg4 Qxb2 *
Position (FEN): 3Q4/8/8/1p6/2p1k1K1/2P5/1q6/8 w - - 0 49
White to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 1025
Best move: Qd4#