Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. N1c3 a6 7. Na3 b5 8. Nd5
Nf6 9. Bg5 Be7 10. Bxf6 Bxf6 11. c3 Be6 12. Nxf6+ Qxf6 13. Qxd6 Rc8 14. Nc2 Nb8
15. Nb4 Rd8 16. Qc5 Qf4 17. Bd3 Qg4 18. Nd5 Bxd5 19. exd5 Qxg2 20. O-O-O Nd7
21. Qc6 O-O 22. Qxa6 Nc5 23. Rdg1 Nxd3+ 24. Kc2 Qxd5 25. Rxg7+ Kxg7 26. Rg1+
Kh8 *
Position (FEN): 3r1r1k/5p1p/Q7/1p1qp3/8/2Pn4/PPK2P1P/6R1 w - - 2 27
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1022
Best move: Qf6#