Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. c3 Nc6 3. d4 e6 4. Nf3 d5 5. e5 a6 6. Be2 Be7 7. O-O f6 8. exf6
Nxf6 9. Bg5 O-O 10. h3 Ne4 11. Bxe7 Qxe7 12. Bd3 cxd4 13. Bxe4 dxe4 14. Nxd4 e5
15. Nxc6 bxc6 16. Nd2 e3 17. fxe3 Be6 18. a3 Qg5 19. Rf3 Rad8 20. Qe2 Qg6 21.
e4 Rxf3 22. Nxf3 Bxh3 23. Nxe5 Qe6 24. Nxc6 Rd6 25. Nd4 Qg6 26. Nf5 Re6 27. Qc4
*
Position (FEN): 6k1/6pp/p3r1q1/5N2/2Q1P3/P1P4b/1P4P1/R5K1 b - - 6 27
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 456
Best move: Qxg2#