Chess puzzle (Checkmate)
Opening: Kings_Knight_Opening, Kings_Knight_Opening_Konstantinopolsky
Moves: 1. e4 e5 2. Nf3 Nc6 3. g3 Bc5 4. Bg2 Nf6 5. d3 d6 6. O-O Bg4 7. c3 h5 8. b4 Bb6
9. a4 a5 10. b5 Ne7 11. c4 Ng6 12. h3 h4 13. hxg4 hxg3 14. Be3 gxf2+ 15. Bxf2
Nxg4 16. Bxb6 Nh4 17. Nxh4 Qxh4 18. Qf3 *
Position (FEN): r3k2r/1pp2pp1/1B1p4/pP2p3/P1P1P1nq/3P1Q2/6B1/RN3RK1 b kq - 1 18
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 786
Best move: Qh2#