Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 d6 3. Bc4 Be7 4. d4 exd4 5. Qxd4 Nf6 6. Nc3 Nc6 7. Qd1 O-O 8.
O-O Be6 9. Bxe6 fxe6 10. Re1 Qd7 11. e5 dxe5 12. Qxd7 Nxd7 13. Nb5 Bd6 14. Ng5
Rae8 15. b3 a6 16. Nxd6 cxd6 17. Bb2 Nc5 18. Rad1 h6 19. Nf3 Rd8 20. Nd2 Nb4
21. Nc4 Nxc2 22. Re2 Nd4 23. Bxd4 exd4 24. Rxd4 b5 25. Nxd6 Nb7 26. Red2 Nxd6
27. Rxd6 Rxd6 28. Rxd6 Rc8 29. g3 Rc1+ 30. Kg2 Kf7 31. Rxa6 Rc2 32. a4 bxa4 33.
bxa4 e5 34. a5 e4 35. Kf1 e3 36. fxe3 Rxh2 37. Ra7+ Kg6 38. a6 Ra2 39. Ra8 Kf5
40. Ra7 Ke4 41. Rxg7 Rxa6 42. Re7+ Kf3 43. Rg7 *
Position (FEN): 8/6R1/r6p/8/8/4PkP1/8/5K2 b - - 3 43
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 753
Best move: Ra1#