Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. Nf3 d5 3. e5 c5 4. d4 cxd4 5. Qxd4 Nc6 6. Bb5 Bd7 7. Bxc6 bxc6 8.
Bg5 Qa5+ 9. c3 c5 10. Qf4 Bb5 11. Nbd2 Bd3 12. Nb3 Qb6 13. Qa4+ Qb5 14. Qxb5+
Bxb5 15. Be3 c4 16. Nbd4 Bd7 17. O-O Ne7 18. b3 Rc8 19. b4 a6 20. a4 Nc6 21.
Nxc6 Bxc6 22. Nd4 Bd7 23. a5 Be7 24. f4 O-O 25. f5 exf5 26. Nxf5 Bxf5 27. Rxf5
Rc6 28. Bd4 Re6 29. Raf1 f6 30. exf6 Bxf6 31. Rxd5 Bxd4+ 32. Rxd4 Rc8 33. h3 h6
34. Rfd1 Kh7 35. g4 Re3 36. Rc1 Rxh3 37. Kg2 Re3 38. Rd6 Re2+ 39. Kf3 Rce8 40.
Rxa6 R8e3+ 41. Kf4 g5+ 42. Kf5 *
Position (FEN): 8/7k/R6p/P4Kp1/1Pp3P1/2P1r3/4r3/2R5 b - - 1 42
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 1018
Best move: Rf2#