Chess puzzle (Checkmate)
Moves: 1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 Nf6 5. Nf3 O-O 6. Be2 b6 7. O-O Bb7 8. d5
Nbd7 9. Qc2 e5 10. a3 a6 11. b4 h6 12. Be3 Ng4 13. Bd2 Kh7 14. Rfb1 Qe7 15. a4
c6 16. h3 Ngf6 17. dxc6 Bxc6 18. Be3 Rfc8 19. a5 bxa5 20. Rxa5 Bb7 21. Qd3 Nb8
22. Nd5 Nxd5 23. cxd5 Nd7 24. Qa3 Nb8 25. b5 Qc7 26. b6 Qc2 27. Rb2 Qc3 28. Rb3
Qc2 29. Bd3 Qd1+ 30. Kh2 Rc2 31. Bxc2 Qxc2 32. Rc3 Qxe4 33. Rc7 Bxd5 34. Qxd6
Nc6 35. Rc5 Rd8 36. Rd7 Rxd7 37. Qxd7 Nb4 38. Rxd5 Nxd5 39. b7 Nxe3 40. b8=Q
Qf4+ 41. Kg1 Nf5 42. Qxf7 Qc1+ 43. Kh2 h5 44. Qbg8+ Kh6 45. g4 Qf4+ 46. Kg2
hxg4 47. Qfxg7+ Nxg7 *
Position (FEN): 6Q1/6n1/p5pk/4p3/5qp1/5N1P/5PK1/8 w - - 0 48
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 923
Best move: Qh8#