Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Smith-Morra_Gambit
Moves: 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 e6 5. Bc4 a6 6. Nf3 b5 7. Bb3 Nc6 8. O-O
Bb7 9. Bf4 Nge7 10. Nd5 Ng6 11. Bg5 Qb8 12. Nb6 Ra7 *
Position (FEN): 1q2kb1r/rb1p1ppp/pNn1p1n1/1p4B1/4P3/1B3N2/PP3PPP/R2Q1RK1 w k - 12 13
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 561
Best move: Qxd7#