Chess puzzle (Checkmate)
Moves: 1. d4 Nc6 2. e3 d5 3. f4 Bf5 4. Nf3 e6 5. a3 Nf6 6. c4 h6 7. Nc3 Bd6 8. cxd5
exd5 9. Bd3 Bxd3 10. Qxd3 Qd7 11. O-O O-O 12. Ne5 Qe6 13. Bd2 Ne7 14. Rac1 Qf5
15. Qxf5 Nxf5 16. Nb5 c6 17. Nxd6 Nxd6 18. Bb4 Nfe4 19. Rc2 Rfe8 20. g3 f6 21.
Nd3 a5 22. Bxd6 Nxd6 23. Nc5 b6 24. Nd7 Nc4 25. Rc3 Rad8 26. b3 Rxd7 27. bxc4
dxc4 28. Rxc4 Rd6 29. Re1 Ree6 30. Kf2 f5 31. Rb1 b5 32. Rc5 g6 33. Rbc1 Kf7
34. a4 b4 35. Rxa5 Re7 36. Rb1 Rb7 37. Rc5 Ke6 38. Rc2 Kd7 39. Rcb2 Rd5 40.
Rxb4 Rxb4 41. Rxb4 Kd6 42. Rb8 Ra5 43. Rh8 Rxa4 44. Rxh6 Kd5 45. Rxg6 Ke4 46.
Rxc6 Ra2+ 47. Kf1 Kf3 48. Rf6 *
Position (FEN): 8/8/5R2/5p2/3P1P2/4PkP1/r6P/5K2 b - - 4 48
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 1170
Best move: Ra1#