Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. a4 a6 5. Bxd7+ Nxd7 6. O-O Ngf6 7. d3 g6 8.
Bg5 Bg7 9. Qd2 O-O 10. Bh6 Rb8 11. Nc3 Re8 12. Bxg7 Kxg7 13. Qg5 e5 14. Qh4 Rc8
15. Ng5 h5 16. Qg3 c4 17. Nf3 Rh8 18. Nh4 cxd3 19. Nf5+ Kf8 20. Nxd6 Qc7 21.
Nxc8 Qxc8 22. Qxd3 Nc5 23. Qd6+ Kg7 24. Qxe5 Re8 25. Qg3 Ncxe4 26. Nxe4 Nxe4
27. Qb3 Nd2 28. Qd3 Nxf1 29. Kxf1 Rd8 30. Qe4 Re8 31. Qd4+ Kg8 32. c4 Rd8 33.
Qc3 Qd7 34. b3 Qc7 35. g3 Re8 36. Rd1 Qc6 37. Rd5 b5 38. axb5 axb5 39. Rxb5 *
Position (FEN): 4r1k1/5p2/2q3p1/1R5p/2P5/1PQ3P1/5P1P/5K2 b - - 0 39
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 975
Best move: Qh1#