Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Nc3 Nf6 5. d3 d6 6. Bg5 Be6 7. Nd5 Bxd5 8.
Bxd5 h6 9. Bh4 g5 10. Bxc6+ bxc6 11. Bg3 O-O 12. O-O Ng4 13. h3 Nf6 14. Nd2 Kg7
15. Nb3 Bb6 16. Kh1 Kg6 17. f3 Nh5 18. Kh2 Qf6 19. Qd2 Rg8 20. Bf2 Nf4 21. Bg3
h5 22. Bxf4 gxf4 23. Qe1 Qg5 24. Nd2 Kh7 25. Qe2 Qg3+ 26. Kh1 Rg5 27. Nc4 Rag8
28. Nxb6 axb6 29. Rg1 Qh4 30. Qe1 Rg3 31. Kh2 c5 32. Qe2 b5 33. a4 bxa4 34.
Rxa4 f5 35. exf5 Qg5 36. Ra7 Rxh3+ 37. gxh3 *
Position (FEN): 6r1/R1p4k/3p4/2p1pPqp/5p2/3P1P1P/1PP1Q2K/6R1 b - - 0 37
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 540
Best move: Qxg1#