Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. Nf3 Bf5 3. Bg5 h6 4. Bh4 a6 5. e3 g5 6. Bg3 e6 7. Bd3 Bg4 8. h3 Bh5
9. Be2 Nc6 10. Ne5 Bxe2 11. Qxe2 h5 12. Nd2 Nge7 13. Qf3 Nxe5 14. Bxe5 Rh7 15.
Nb3 Nc6 16. Bh2 Nb4 17. Qe2 Bd6 18. a3 Bxh2 19. Rxh2 Qd6 20. Rh1 Nc6 21. Nc5 b6
22. Nxa6 e5 23. O-O-O e4 24. f3 f5 25. fxe4 fxe4 26. Qb5 Kd8 27. Nb4 Na5 28.
Qxd5 Qxd5 29. Nxd5 Nc4 30. Rde1 Rh6 31. Rhf1 Kc8 32. Ne7+ Kb7 33. Nf5 Rh7 34.
Ng3 Nd6 35. Rf6 h4 36. Nf5 Nxf5 37. Rxf5 Rg7 38. Re5 g4 39. Rxe4 gxh3 40. gxh3
Rh8 41. Rf1 Rg3 42. Rh1 Rg2 43. b3 Rf8 44. Rxh4 Rff2 45. Kb2 Rxc2+ 46. Kb1 Rb2+
47. Kc1 Ra2 48. a4 *
Position (FEN): 8/1kp5/1p6/8/P2P3R/1P2P2P/r5r1/2K4R b - - 0 48
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 1474
Best move: Ra1#