Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. c3 Nc6 3. d4 a6 4. f4 e6 5. d5 exd5 6. exd5 Nb8 7. Nf3 d6 8. c4 Nf6
9. b3 Bf5 10. Bb2 Be7 11. Be2 Nbd7 12. O-O Ne4 13. Bxg7 Rg8 14. Bb2 Bh3 15. Ng5
Nxg5 16. fxg5 Rxg5 17. Rf2 Qc7 18. Bf3 Ne5 19. Re2 O-O-O 20. Bxe5 dxe5 21. Kh1
Bd7 22. Nc3 Rdg8 23. Ne4 R5g6 24. Bh5 Rh6 25. Bxf7 Rg7 26. Rf2 Bh4 27. Rf1 Bg4
28. Qc1 Rb6 29. d6 Qd7 30. Bd5 Rxd6 31. Nxc5 Qe7 32. Bxb7+ Kb8 33. Bd5 Rdg6 34.
Ne4 Be2 35. Qe3 Bxf1 36. Rxf1 Rxg2 37. Qb6+ Kc8 38. Nd6+ Kd7 39. Qc6+ Kd8 40.
Nb7+ Qxb7 41. Rf8+ Ke7 42. Qe8+ Kd6 43. Qe6+ Kc5 44. Rc8+ Kd4 45. Bxb7 *
Position (FEN): 2R5/1B4rp/p3Q3/4p3/2Pk3b/1P6/P5rP/7K b - - 0 45
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 507
Best move: Rg1#