Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Nc3 d6 5. h3 f5 6. d3 Nf6 7. Bg5 h6 8. Bh4 g5
9. Nxg5 hxg5 10. Bxg5 Rf8 11. Nd5 Bxf2+ 12. Kf1 fxe4 13. Nxf6+ Rxf6 14. Qh5+
Kd7 15. Qh7+ Ne7 16. Bxf6 e3 17. Ke2 Qf8 18. g4 Qxf6 19. Rhf1 c6 20. h4 Qxh4
21. Qf7 Qxg4+ 22. Qf3 Kc7 23. Qxg4 *
Position (FEN): r1b5/ppk1n3/2pp4/4p3/2B3Q1/3Pp3/PPP1Kb2/R4R2 b - - 0 23
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 684
Best move: Bxg4#