Chess puzzle (Checkmate)
Moves: 1. b3 e5 2. Bb2 Nc6 3. e3 d5 4. Bb5 Bd6 5. Nf3 e4 6. Bxg7 exf3 7. Qxf3 Be5 8.
Bxe5 f6 9. Bb2 Be6 10. d3 Qd6 11. Bxf6 Nxf6 12. Qxf6 Rf8 13. Qd4 a6 14. Bxc6+
Qxc6 15. c4 dxc4 16. Qe4 Qxe4 17. dxe4 O-O-O 18. bxc4 Bxc4 19. Nc3 Rd3 20. Nd5
Re8 21. O-O Rxe4 22. Nf6 Re7 23. Rfd1 Ra3 24. Rd4 Rxa2 25. Rad1 b5 26. Rd8+ Kb7
27. Nd7 Kc6 28. Nb8+ Kb7 29. Nd7 Be6 30. Nc5+ Kc6 31. Nxe6 Rxe6 32. Rc1+ Kb7
33. Rh8 Rf6 34. Rxh7 Rfxf2 35. Rcxc7+ Kb6 36. Rb7+ Ka5 37. Rhg7 Rfe2 38. Rbe7 *
Position (FEN): 8/4R1R1/p7/kp6/8/4P3/r3r1PP/6K1 b - - 6 38
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 500
Best move: Ra1#