Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Bg5 e6 5. e3 Be7 6. cxd5 Nxd5 7. Bxe7 Qxe7 8.
Bd3 Nd7 9. Nge2 N7f6 10. Qc2 Bd7 11. a3 O-O 12. e4 Nxc3 13. bxc3 b6 14. e5 Ng4
15. Bxh7+ Kh8 16. h3 Qh4 17. O-O Nxe5 18. dxe5 Qxh7 19. Qxh7+ Kxh7 20. c4 c5
21. Nc3 Bc6 22. Rfd1 Rad8 23. Rd6 Rxd6 24. exd6 Rd8 25. Rd1 Kg6 26. f3 f5 27.
Kf2 Kf6 28. g4 g6 29. Ne2 e5 30. f4 Ke6 31. gxf5+ Kxf5 32. fxe5 Kxe5 33. Ke3
Rxd6 34. Rg1 Be4 35. Rg5+ Kf6 36. Kf4 Bf5 37. h4 Re6 38. Nc3 Re1 39. Nd5+ Kf7
40. h5 Rf1+ 41. Ke5 Re1+ 42. Kf4 Re4+ 43. Kf3 Rh4 44. hxg6+ Bxg6 45. Re5 Rh3+
46. Kg4 Rxa3 47. Re7+ Kf8 48. Kg5 Bf7 49. Rb7 Bxd5 50. cxd5 c4 51. Kf6 Rf3+ 52.
Ke6 c3 53. d6 Re3+ 54. Kf6 Rd3 *
Position (FEN): 5k2/pR6/1p1P1K2/8/8/2pr4/8/8 w - - 3 55
White to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 1542
Best move: Rb8#