Chess puzzle (Checkmate)
Moves: 1. d4 f6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 Nc6 5. e3 e5 6. Nf3 Bb4+ 7. Nc3 Nge7 8.
Bd2 O-O 9. Bd3 Kh8 10. O-O d6 11. Qc2 g6 12. Nd5 Nxd5 13. cxd5 Bxd2 14. dxc6
Ba5 15. cxb7 Bxb7 16. Rac1 f5 17. e4 Rc8 18. Qa4 Bb6 19. exf5 e4 20. Bxe4 Bxe4
21. Qxe4 Rxf5 22. Qe6 Rxc1 23. Rxc1 Kg7 24. Rc8 Qf6 25. Qg8+ Kh6 26. Re8 Qxb2
27. Re1 Qxf2+ 28. Kh1 Qxe1+ 29. Nxe1 *
Position (FEN): 6Q1/p6p/1b1p2pk/5r2/8/8/P5PP/4N2K b - - 0 29
Black to move.
Themes:  Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 450
Best move: Rf1#