Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. cxd5 exd5 6. e3 Bf5 7. Bb5+ c6 8.
Bd3 Bg6 9. Bxg6 hxg6 10. Nf3 Nbd7 11. Qb3 Qb6 12. Qxb6 axb6 13. a3 b5 14. O-O
O-O 15. b4 Rfe8 16. Bf4 Nb6 17. Nd2 Nfd7 18. Rfe1 Bf6 19. g4 g5 20. Bg3 Na4 21.
Nxa4 Rxa4 22. f4 Rea8 23. Nb1 Nb6 24. fxg5 Bxg5 25. h4 Bd8 26. g5 Nc4 27. Kf2
Nxa3 28. Nxa3 Rxa3 29. Rxa3 Rxa3 30. Kf3 f6 31. gxf6 Bxf6 32. h5 Bxd4 33. Kf4
Bf6 34. Kf5 Be7 35. Be5 Bxb4 36. Rg1 Bf8 37. h6 Rxe3 38. Bxg7 Bxg7 39. Rxg7+
Kh8 40. Kg6 Rg3+ 41. Kf7 Rf3+ 42. Kg6 Rh3 43. Rh7+ Kg8 44. Rxb7 Rg3+ 45. Kf6
Rf3+ 46. Kg6 Rg3+ 47. Kf6 Rh3 48. h7+ Rxh7 *
Position (FEN): 6k1/1R5r/2p2K2/1p1p4/8/8/8/8 w - - 0 49
White to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 1154
Best move: Rb8#