Chess puzzle (Checkmate)
Moves: 1. c4 e6 2. Nc3 d5 3. cxd5 exd5 4. d4 Nf6 5. Nf3 c6 6. g3 Bd6 7. Bg2 O-O 8. O-O
Bg4 9. Bg5 h6 10. Bxf6 Qxf6 11. e3 Nd7 12. a3 Rfe8 13. b4 Qe6 14. Re1 Nf6 15.
Qc2 Bh3 16. Bh1 Ne4 17. Nxe4 dxe4 18. Nd2 f5 19. Qc4 Bg4 20. Qxe6+ Rxe6 21. Nc4
Bc7 22. Rec1 Rg6 23. Bg2 h5 24. Nd2 h4 25. b5 h3 26. Bf1 Rb8 27. Rc3 Ba5 28.
Rc2 Bxd2 29. Rxd2 cxb5 30. Bxb5 Rc8 31. Rb2 Kh8 32. Be2 Bxe2 33. Rxe2 Rc3 34.
Rb2 Rgc6 35. Rbb1 b6 36. Kf1 Rc2 37. Ke1 a6 38. a4 Kh7 39. Rd1 Kh6 40. Rd2 R2c4
41. Ke2 Kh5 42. f3 exf3+ 43. Kxf3 g5 44. Rad1 b5 45. axb5 axb5 46. Rb2 b4 47.
Rdb1 Re6 48. Rxb4 g4+ 49. Kf4 Rc2 50. Kxf5 Rxe3 51. Rb8 *
Position (FEN): 1R6/8/8/5K1k/3P2p1/4r1Pp/2r4P/1R6 b - - 1 51
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 1416
Best move: Rf2#