Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. e3 Bg7 7. Nc3 O-O 8. Nf3
d6 9. Bc4 Bxa6 10. Bxa6 Nxa6 11. O-O Nb4 12. a3 Qb6 13. e4 Rfb8 14. Na4 Rxa4
15. Qxa4 Nd3 16. Qc2 Qa6 17. Rd1 c4 18. Ne1 Nc5 19. f3 Nb3 20. Rb1 Nd7 21. Be3
Ne5 22. h3 h5 23. Qf2 Qb5 24. Bd2 Nxd2 25. Qxd2 Kh7 26. Qb4 Qxb4 27. axb4 Rxb4
28. Nc2 Rb7 29. Nd4 Nd3 30. Nc6 Nxb2 31. Rdc1 c3 32. e5 dxe5 33. Rxc3 e4 34.
Rc2 exf3 35. gxf3 Rb5 36. Nxe7 Rb6 37. Nc6 Rb7 38. Na5 Rb5 39. Nc4 Bd4+ 40. Kh1
Rc5 41. Rbxb2 Bxb2 42. Rxb2 Rxc4 43. Rd2 Rc7 44. Kg2 Kg7 45. Kf2 Kf6 46. Ke3
Ke5 47. f4+ Kd6 48. Rd4 Rc3+ 49. Ke4 *
Position (FEN): 8/5p2/3k2p1/3P3p/3RKP2/2r4P/8/8 b - - 4 49
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 1178
Best move: f5#