Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O d6 5. c3 Bg4 6. h3 Bh5 7. d3 Nf6 8. a4 h6
9. b4 g5 10. bxc5 g4 11. Nh2 gxh3 12. g4 Nxg4 13. Nxg4 Qh4 14. Nf6+ Qxf6 15.
Qxh5 Qg7+ 16. Bg5 hxg5 17. Qg4 Rh4 18. Qg3 Qh6 19. Kh2 Qh5 20. Na3 Rg4 21. Qe3
Rg2+ 22. Kh1 Qg4 23. d4 Rh2+ 24. Kxh2 *
Position (FEN): r3k3/ppp2p2/2np4/2P1p1p1/P1BPP1q1/N1P1Q2p/5P1K/R4R2 b q - 0 24
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 693
Best move: Qg2#