Chess puzzle (Checkmate)
Opening: St_George_Defense, St_George_Defense_Other_variations
Moves: 1. e4 a6 2. f4 e6 3. d4 Nf6 4. e5 Nd5 5. Bc4 Nb6 6. Bb3 d5 7. Nf3 c5 8. a3 c4
9. Ba2 Be7 10. O-O O-O 11. Ng5 Bxg5 12. fxg5 Nc6 13. c3 Ne7 14. Nd2 Nf5 15. Nf3
Nd7 16. Bb1 b5 17. Qc2 a5 18. g4 Ne7 *
Position (FEN): r1bq1rk1/3nnppp/4p3/pp1pP1P1/2pP2P1/P1P2N2/1PQ4P/RBB2RK1 w - - 1 19
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 399
Best move: Qxh7#