Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Old_Sicilian
Moves: 1. e4 c5 2. Nf3 Nc6 3. c3 g6 4. d4 Bg7 5. e5 cxd4 6. cxd4 d6 7. Bb5 Qa5+ 8. Nc3
dxe5 9. dxe5 Bd7 10. O-O Nxe5 11. Bxd7+ Nxd7 12. Re1 Rd8 13. Qe2 Ngf6 *
Position (FEN): 3rk2r/pp1nppbp/5np1/q7/8/2N2N2/PP2QPPP/R1B1R1K1 w k - 4 14
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 458
Best move: Qxe7#