Chess puzzle (Checkmate)
Moves: 1. d4 c5 2. d5 e6 3. e4 exd5 4. exd5 Nf6 5. Nc3 d6 6. Bb5+ Bd7 7. a4 Be7 8. Nf3
O-O 9. Bxd7 Nbxd7 10. O-O a6 11. h3 h6 12. Re1 Re8 13. Bf4 Qc7 14. Nd2 Bf8 15.
Qf3 Ne5 16. Bxe5 dxe5 17. Nc4 Nd7 18. Qg3 Bd6 19. Rad1 Nf6 20. a5 Rad8 21. Qf3
Re7 22. g4 Rde8 23. Ne4 Nxe4 24. Qxe4 Qb8 25. Kg2 Qd8 26. Rd3 Qb8 27. Rf3 Qd8
28. Ne3 g6 29. Rf6 Kg7 30. Rf3 Qxa5 31. Nc4 Qc7 32. h4 b5 33. Ne3 c4 34. g5 h5
35. Rf6 Rd7 36. Nf5+ gxf5 37. Qxf5 Qb7 38. Qe4 Be7 39. Rf5 Qxd5 40. Rxe5 Qxe4+
41. R1xe4 Kf8 42. f4 Rdd8 43. Kf3 Bd6 44. Rxe8+ Rxe8 45. Rd4 Bc5 46. Rd5 Ba7
47. Rd7 Bb8 48. f5 Re5 49. f6 Rf5+ 50. Ke3 Rf4 *
Position (FEN): 1b3k2/3R1p2/p4P2/1p4Pp/2p2r1P/4K3/1PP5/8 w - - 3 51
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 452
Best move: Rd8#