Chess puzzle (Checkmate)
Moves: 1. d4 c6 2. e3 d5 3. c4 Nf6 4. cxd5 cxd5 5. Qb3 Nc6 6. Bb5 e6 7. Bxc6+ bxc6 8.
Nf3 Bd6 9. Nc3 Rb8 10. Qa4 Bd7 11. Qxa7 O-O 12. Qa4 c5 13. Qc2 cxd4 14. Nxd4 e5
15. Nde2 Bb4 16. Bd2 Rc8 17. O-O d4 18. exd4 exd4 19. Nxd4 Bg4 20. Qd3 Re8 21.
a3 Bxc3 22. Bxc3 Nd5 23. Rfc1 Nf4 24. Qg3 Qg5 25. Re1 Rxe1+ 26. Rxe1 h6 27. h3
Be6 28. Qxg5 hxg5 29. g3 Nxh3+ 30. Kg2 g4 31. Nxe6 fxe6 32. Rxe6 Kf7 33. Re5
Kg6 34. Re4 Kf5 35. Re7 Ng5 36. Rxg7 Ne4 37. a4 Nxc3 38. bxc3 Rxc3 39. a5 Ra3
40. Rf7+ Kg6 41. Ra7 Kf5 42. Kf1 Ke4 43. Ke2 Ra2+ 44. Ke1 Kd3 45. Rd7+ Ke4 46.
Re7+ Kd3 47. Re5 *
Position (FEN): 8/8/8/P3R3/6p1/3k2P1/r4P2/4K3 b - - 16 47
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 725
Best move: Ra1#