Chess puzzle (Checkmate)
Moves: 1. e4 c6 2. Nf3 d5 3. exd5 cxd5 4. Nc3 a6 5. a3 Nf6 6. d4 Bf5 7. h3 e6 8. Bg5
Nbd7 9. g4 Bg6 10. Ne5 Be7 11. Bd3 Bxd3 12. Nxd3 O-O 13. Ne5 Rc8 14. Nxd7 Qxd7
15. h4 Qc7 16. Qf3 Rcd8 17. Bf4 Bd6 18. Bxd6 Qxd6 19. g5 Ne4 20. Nxe4 dxe4 21.
Qxe4 Qxd4 22. Qxd4 Rxd4 23. Rd1 Rxd1+ 24. Kxd1 Rd8+ 25. Kc1 b5 26. c3 a5 27.
Rd1 Rc8 28. Rd7 b4 29. axb4 axb4 30. Rd3 bxc3 31. Rxc3 Rb8 32. Kc2 g6 33. b3
Kg7 34. Rc4 h6 35. gxh6+ Kxh6 36. b4 Kh5 37. Kd2 f5 38. Ke3 g5 39. hxg5 Kxg5
40. f4+ Kg4 41. Kf2 Rh8 42. b5 Rh2+ 43. Ke3 Rb2 44. Rc5 Rb1 45. Re5 Kg3 46. Rc5
Rf1 47. Rc6 Rxf4 48. Rxe6 Rb4 49. Re5 f4+ 50. Ke2 Rb2+ 51. Kf1 f3 52. Rf5 *
Position (FEN): 8/8/8/1P3R2/8/5pk1/1r6/5K2 b - - 1 52
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 1321
Best move: Rb1#