Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Smith-Morra_Gambit
Moves: 1. e4 c5 2. d4 cxd4 3. Qxd4 a6 4. Nc3 e6 5. Nf3 Qc7 6. Bg5 Nc6 7. Qd3 b5 8.
O-O-O Bb7 9. Bh4 Rc8 10. Bg3 Qa5 *
Position (FEN): 2r1kbnr/1b1p1ppp/p1n1p3/qp6/4P3/2NQ1NB1/PPP2PPP/2KR1B1R w k - 6 11
White to move.
Themes:  Opening Mate in 1 
Puzzle rating: 1031
Best move: Qxd7#