Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Bg7 5. Nc3 Nc6 6. Be3 Nf6 7. Bc4 Qa5 8.
O-O O-O 9. Nb3 Qd8 10. f3 d6 11. Qd2 Bd7 12. Bh6 Rc8 13. Bxg7 Kxg7 14. Be2 Ne5
15. Rad1 Nc4 16. Bxc4 Rxc4 17. Kh1 Qc7 18. g4 Be6 19. g5 Nh5 20. f4 Bh3 21. Rf2
Qd7 22. f5 gxf5 23. Qd3 Bg4 24. Qxc4 Bxd1 25. Qd4+ e5 26. Qxd1 Nf4 27. Nc5 Qc6
28. Nd3 fxe4 29. Nxf4 e3+ 30. Rg2 exf4 31. Qd4+ Kg8 32. Qxf4 Re8 33. Kg1 Qb6
34. Re2 Qxb2 35. Nd5 Qa1+ 36. Kg2 Qe5 37. Nf6+ Kh8 38. Qh4 Qf5 39. Nxe8 Qd5+
40. Kf1 *
Position (FEN): 4N2k/pp3p1p/3p4/3q2P1/7Q/4p3/P1P1R2P/5K2 b - - 2 40
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1450
Best move: Qh1#