Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Alapin_Variation
Moves: 1. e4 c5 2. c3 d6 3. d4 cxd4 4. cxd4 Nf6 5. Nc3 g6 6. Nf3 Bg7 7. Bb5+ Bd7 8.
Bxd7+ Nbxd7 9. e5 dxe5 10. dxe5 Ng4 11. e6 fxe6 12. O-O O-O 13. Qb3 Nc5 14. Qc4
Rxf3 15. gxf3 Ne5 16. Qxc5 Nxf3+ 17. Kh1 Qd3 18. Qe3 *
Position (FEN): r5k1/pp2p1bp/4p1p1/8/8/2NqQn2/PP3P1P/R1B2R1K b - - 3 18
Black to move.
Themes: Hanging Piece, Kingside Attack Middlegame Mate in 1 
Puzzle rating: 689
Best move: Qxf1#