Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Modern_Variations
Moves: 1. e4 c5 2. Nf3 d6 3. Bc4 Nf6 4. d3 e6 5. O-O Be7 6. Re1 d5 7. exd5 exd5 8.
Bb5+ Nc6 9. Bxc6+ bxc6 10. Qe2 h6 11. Qe3 d4 12. Qe5 Qd5 *
Position (FEN): r1b1k2r/p3bpp1/2p2n1p/2pqQ3/3p4/3P1N2/PPP2PPP/RNB1R1K1 w kq - 2 13
White to move.
Themes:  Opening Mate in 1 
Puzzle rating: 770
Best move: Qxe7#