Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. c3 e6 3. d4 cxd4 4. cxd4 d5 5. e5 Nc6 6. Nf3 Bd7 7. Nc3 Nge7 8. Be2
Nf5 9. Be3 Be7 10. O-O O-O 11. Rc1 a6 12. Bd3 Nxe3 13. fxe3 f6 14. exf6 Bxf6
15. Qe1 Rc8 16. Qg3 Qe7 17. Na4 Nxd4 18. Nb6 Nxf3+ 19. Qxf3 Rxc1 20. Rxc1 Bc6
21. Qh3 h6 22. Bc2 Bxb2 23. Rb1 Be5 24. Qg4 Qf6 25. h3 Qf2+ 26. Kh1 Qf1+ 27.
Rxf1 *
Position (FEN): 5rk1/1p4p1/pNb1p2p/3pb3/6Q1/4P2P/P1B3P1/5R1K b - - 0 27
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1045
Best move: Rxf1#