Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. Nf3 Nc6 3. e3 Nf6 4. a3 Bd7 5. Bd3 e6 6. b3 Be7 7. Bb2 O-O 8. O-O
Re8 9. Nbd2 a6 10. c4 dxc4 11. Nxc4 b5 12. Nce5 Nxe5 13. Nxe5 Bc8 14. Nc6 Qd5
15. Rc1 h5 16. Re1 Bb7 17. Nxe7+ Rxe7 18. e4 Qg5 19. Rc5 Qg6 20. f3 e5 21. dxe5
Nd7 22. Rxc7 Qb6+ 23. Kh1 Qxc7 24. f4 Re6 25. Qxh5 Rae8 26. f5 g6 27. Qh3 Rxe5
28. Rf1 gxf5 29. exf5 f6 30. Qh6 a5 31. Rf4 Re1+ 32. Bf1 Kf7 33. Qh7+ Kf8 34.
Rf2 Ba8 35. Qh6+ Ke7 36. Qg7+ Kd8 37. Bxf6+ Nxf6 38. Qxf6+ Kc8 39. Qh4 Qc1 40.
Qf4 Rxf1+ 41. Rxf1 Qxf4 42. Rxf4 Re1+ 43. Rf1 *
Position (FEN): b1k5/8/8/pp3P2/8/PP6/6PP/4rR1K b - - 2 43
Black to move.
Themes: Hanging Piece Endgame Mate in 1 
Puzzle rating: 780
Best move: Rxf1#