Chess puzzle (Checkmate)
Opening: St_George_Defense, St_George_Defense_Other_variations
Moves: 1. e4 a6 2. d4 b5 3. f4 Bb7 4. Bd3 e6 5. Nf3 Bb4+ 6. c3 Ba5 7. O-O Nf6 8. Qe1
O-O 9. e5 Nd5 10. Bxh7+ Kxh7 11. Ng5+ Kg8 12. Qh4 f6 *
Position (FEN): rn1q1rk1/1bpp2p1/p3pp2/bp1nP1N1/3P1P1Q/2P5/PP4PP/RNB2RK1 w - - 0 13
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 818
Best move: Qh7#