Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Nc6 5. Nbd2 dxc4 6. Nxc4 b5 7. Ne3 Bb7 8.
Bg2 Bb4+ 9. Bd2 O-O 10. O-O Bxd2 11. Qxd2 Nd5 12. Rac1 Nce7 13. Rc5 Nxe3 14.
Qxe3 Nf5 15. Qf4 Bxf3 16. Bxf3 Nxd4 17. Qxc7 Nxf3+ 18. exf3 Rc8 19. Qxd8 Rfxd8
20. Rfc1 Rxc5 21. Rxc5 a6 22. Rc6 g6 23. Rxa6 Rd2 24. b4 Rb2 25. a3 Kg7 26. Kg2
Rb3 27. h4 Kf6 28. f4 Kf5 29. Ra7 Kf6 30. Rb7 Rxa3 31. Rxb5 h5 32. Rb7 Rb3 33.
b5 Kg7 34. b6 Kf6 35. Rb8 Kf5 36. Rf8 Kf6 37. Rb8 Kf5 38. b7 Kg4 39. Rc8 Rxb7
40. Rc5 f6 *
Position (FEN): 8/1r6/4ppp1/2R4p/5PkP/6P1/5PK1/8 w - - 0 41
White to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 1130
Best move: f3#