Chess puzzle (Checkmate)
Moves: 1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 b6 7. Nf3 Bb7 8. Be2
O-O 9. O-O Nc6 10. d5 Na5 11. dxe6 dxe6 12. Qc2 Ne4 13. Bd3 f5 14. Rd1 Qf6 15.
Bb2 e5 16. Bxe4 fxe4 17. Nd2 Qxf2+ 18. Kh1 Rad8 19. Bc1 Rd3 20. h3 Rxe3 21. Rf1
Rxh3+ 22. gxh3 e3+ 23. Ne4 Bxe4+ 24. Qxe4 Qxf1+ 25. Kh2 Rf2+ 26. Kg3 Rg2+ 27.
Qxg2 *
Position (FEN): 6k1/p5pp/1p6/n1p1p3/2P5/P1P1p1KP/6Q1/R1B2q2 b - - 0 27
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1457
Best move: Qf4#