Chess puzzle (Checkmate)
Moves: 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. Nf3 Nf6 5. d4 Nc6 6. Bb5 Bd7 7. O-O e6 8.
Bd2 Bd6 9. Re1 O-O 10. Ne4 Nxe4 11. Rxe4 h6 12. c4 a6 13. Ba4 f5 14. Re1 Bb4
15. Bxb4 Nxb4 16. Bxd7 Qxd7 17. Qb3 a5 18. a3 Nc6 19. d5 Nd8 20. Ne5 Qd6 21.
Rad1 b6 22. Qb5 Kh7 23. Qd7 exd5 24. Qxd6 cxd6 25. Nd7 Rf7 26. Nxb6 Rb8 27. Re8
Rxb6 28. Rxd8 dxc4 29. R8xd6 Rxb2 30. R6d2 c3 31. Rd5 c2 32. Rf1 Rb1 33. Rc5
Rb2 34. h3 Rd7 35. Kh2 Rd1 36. Rxc2 Rxc2 37. Rxd1 Rxf2 38. Rd5 f4 39. Kg1 Ra2
40. Rxa5 g5 41. Ra6 h5 42. Kf1 h4 43. a4 Ra3 44. Kf2 Ra2+ 45. Kf3 Ra3+ 46. Kg4
Rg3+ 47. Kh5 Rxg2 48. Ra7+ Kg8 49. Kg6 f3 *
Position (FEN): 6k1/R7/6K1/6p1/P6p/5p1P/6r1/8 w - - 0 50
White to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 1064
Best move: Ra8#