Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 Bb4 5. bxc3 Ba5 6. Qh5 Qe7 7. Qxa5 Qxe4+
8. Be2 Nc6 9. Qg5 g6 10. Nd2 Qe6 11. Ngf3 d6 12. O-O f6 13. Qe3 Ne5 14. Nd4 Qf7
15. f4 Ne7 16. fxe5 dxe5 17. N4f3 O-O 18. Nxe5 Qe6 19. Bc4 Nd5 20. Bxd5 Qxd5
21. Nef3 Bd7 22. Qd4 Qc6 23. Qc4+ Qxc4 24. Nxc4 Bb5 25. Nfd2 Rad8 26. Ba3 Rf7
27. Rf4 Kg7 28. Rb1 Ba6 29. Rd4 Rfd7 30. Rxd7+ Rxd7 31. Rb4 b5 32. Ne4 bxc4 33.
Nc5 Rd6 34. Ra4 Bc8 35. Rxa7 Rc6 36. Bb4 Bf5 37. Na6 Bd3 38. Nxc7 Kh6 39. a4
Be4 40. a5 f5 41. a6 f4 42. Ba5 Rd6 43. Nb5 Rd1+ 44. Kf2 g5 45. Re7 Rd2+ 46.
Ke1 Rb2 47. Rxe4 Rxb5 48. Bb4 Rb6 49. a7 Ra6 50. Bc5 Kg6 51. Re8 Ra1+ 52. Kf2
Ra2+ 53. Kf3 Kf5 54. a8=Q *
Position (FEN): Q3R3/7p/8/2B2kp1/2p2p2/2P2K2/r5PP/8 b - - 0 54
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1456
Best move: g4#