Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Chekhover_Variation
Moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 Nf6 6. e5 Qa5+ 7. Nc3 dxe5 8.
Bxc6+ bxc6 9. Nxe5 Bb7 10. Bg5 Nd5 11. O-O Nxc3 *
Position (FEN): r3kb1r/pb2pppp/2p5/q3N1B1/3Q4/2n5/PPP2PPP/R4RK1 w kq - 0 12
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 755
Best move: Qd7#