Chess puzzle (Checkmate)
Moves: 1. b3 Nf6 2. Bb2 g6 3. g3 Bg7 4. Bg2 O-O 5. c4 c6 6. Nf3 d5 7. O-O Bf5 8. Nc3
a5 9. d4 a4 10. Nxa4 dxc4 11. bxc4 Ne4 12. Nc3 c5 13. Nxe4 Bxe4 14. Ne5 Bxe5
15. dxe5 Bxg2 16. Kxg2 Qxd1 17. Rfxd1 Nc6 18. Rd7 b6 19. Rc7 Rfc8 20. Rxc8+
Rxc8 21. Bc3 Kf8 22. Kf3 Ke8 23. Ke4 Rd8 24. Rb1 Rb8 25. Kd5 Kd7 26. Ke4 e6 27.
h4 Kc7 28. h5 Ra8 29. Rb2 Ra3 30. Rc2 Ne7 31. hxg6 hxg6 32. Kf4 Nf5 33. g4 Ne7
34. Kg5 Nc6 35. Kf6 Nd8 36. f4 Kd7 37. f5 gxf5 38. gxf5 exf5 39. Kxf5 Ke7 40.
Bd2 Ne6 41. e3 Rd3 42. Rb2 Ng7+ 43. Ke4 Ra3 44. Rxb6 Rxa2 45. Rb7+ Ke8 46. Be1
Rc2 47. Kd5 Re2 48. Bh4 Rxe3 49. Rb8+ Kd7 50. Rb7+ Ke8 51. Kc6 Rxe5 *
Position (FEN): 4k3/1R3pn1/2K5/2p1r3/2P4B/8/8/8 w - - 0 52
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1000
Best move: Rb8#