Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Najdorf_Variation
Moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 Nc6 7. Be3 g6 8. Qd2
Ne5 9. Bh6 b5 10. Bxf8 Rxf8 11. a3 Nc4 12. Bxc4 bxc4 13. Nd5 Nxe4 14. Qe2 Qa5+
15. c3 Qxd5 16. O-O Bb7 17. Rae1 Nxc3 *
Position (FEN): r3kr2/1b2pp1p/p2p2p1/3q4/2pN4/P1n4P/1P2QPP1/4RRK1 w q - 0 18
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 838
Best move: Qxe7#