Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. Nc3 Bb4 7. Bd3 O-O
8. O-O h6 9. a3 Bc5 10. Bf4 d6 11. h3 Re8 12. Re1 Nd7 13. Qf3 Ne5 14. Qg3 Nxd3
15. cxd3 Kh8 16. Rad1 Bd4 17. Be3 Bxe3 18. Rxe3 d5 19. exd5 Rxe3 20. Qxe3 cxd5
21. d4 Be6 22. Qe5 Rb8 23. b4 Qd7 24. Rc1 Rc8 25. Rd1 Qd6 26. Qxd6 cxd6 27. Nb5
a6 28. Nxd6 Rc3 29. Ra1 Rd3 30. a4 Rxd4 31. b5 axb5 32. Nxb5 Rb4 33. Nc7 Rb7
34. Nxe6 fxe6 35. Re1 Rb6 36. a5 Ra6 37. Ra1 Kg8 38. Kf1 Kf7 39. Ke2 Ke7 40.
Kd3 Kd6 41. Kd4 e5+ 42. Kc3 Kc5 43. Kd3 h5 44. h4 e4+ 45. Ke3 Kd6 46. Kd4 Kc6
47. Ra3 Kd6 48. Ra2 g6 49. Ra1 Rc6 50. Ra2 Rc4+ 51. Ke3 Rc3+ 52. Kd4 *
Position (FEN): 8/8/3k2p1/P2p3p/3Kp2P/2r5/R4PP1/8 b - - 7 52
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 1074
Best move: Rd3#