Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2 a5 5. e3 d6 6. Bd3 O-O 7. O-O Bxd2 8.
Bxd2 Nc6 9. a3 e5 10. dxe5 dxe5 11. Bc3 Bg4 12. Be2 e4 13. Nd4 Ne5 14. h3 Bd7
15. Ne6 Bxe6 16. Bxe5 Qe7 17. Qd4 Rfd8 18. Bxf6 Qxf6 19. Qxf6 gxf6 20. Rfd1 c5
21. a4 f5 22. Kf1 Kg7 23. Ke1 Rxd1+ 24. Kxd1 Ra6 25. Kc2 Rb6 26. Rd1 Rc6 27.
Rd8 b6 28. Kc3 Kf6 29. Rh8 Kg7 30. Rb8 Rd6 31. b3 Kf6 32. Rh8 Kg7 33. Rb8 h6
34. g3 f4 35. exf4 Bxh3 36. Re8 f5 37. Re5 Kf6 38. Rd5 Re6 39. Bh5 Bg2 40. Rd7
e3 *
Position (FEN): 8/3R4/1p2rk1p/p1p2p1B/P1P2P2/1PK1p1P1/5Pb1/8 w - - 0 41
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1139
Best move: Rf7#