Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nxc6 Qf6 6. Qf3 bxc6 7. Nd2 a6 8.
Nb3 Qxf3 9. gxf3 Be7 10. Rg1 a5 11. Be3 d6 12. O-O-O Bf6 13. Bg5 g6 14. f4 Be7
15. e5 a4 16. Nd4 Bd7 17. Bg2 Ra7 18. Nxc6 Bxc6 19. Bxc6+ Kf8 20. exd6 Bxd6 21.
Rge1 Kg7 22. Re8 Ra5 23. Kb1 h6 24. Bd8 Rh5 25. h4 Rh7 26. Bxa4 Nf6 27. Bxf6+
Kxf6 28. Bb3 Bc5 29. a4 Rxh4 30. a5 Bxf2 31. a6 Bb6 32. Rb8 g5 33. Rd7 gxf4 34.
Rxb6+ cxb6 35. a7 Rh1+ 36. Ka2 Rh8 37. Rxf7+ Ke5 38. Re7+ Kd4 39. Rd7+ Kc5 40.
Bd5 Rd1 41. c4 b5 42. b3 Re8 43. a8=Q Re2+ 44. Ka3 b4+ 45. Ka4 *
Position (FEN): Q7/3R4/7p/2kB4/KpP2p2/1P6/4r3/3r4 b - - 1 45
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 563
Best move: Ra1#