Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Delayed_Alapin
Moves: 1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. d4 Nxe4 5. Bd3 Nf6 6. Bg5 cxd4 7. Qa4+ Bd7 8.
Qxd4 e5 9. Qh4 Be7 10. O-O O-O 11. Bxf6 Bxf6 *
Position (FEN): rn1q1rk1/pp1b1ppp/3p1b2/4p3/7Q/2PB1N2/PP3PPP/RN3RK1 w - - 0 12
White to move.
Themes: Kingside Attack Opening Mate in 1 
Puzzle rating: 571
Best move: Qxh7#