Chess puzzle (Checkmate)
Opening: Owen_Defense, Owen_Defense_Other_variations
Moves: 1. e4 b6 2. d4 Bb7 3. Bd3 g6 4. c4 Bg7 5. Be3 d6 6. Nc3 e6 7. Nge2 Ne7 8. O-O
Qd7 9. Qd2 Nbc6 10. a3 d5 11. cxd5 exd5 12. e5 f6 13. f4 fxe5 14. fxe5 O-O-O
15. Rac1 Rhf8 16. Rxf8 Rxf8 17. Bb5 Qf5 18. Rf1 *
Position (FEN): 2k2r2/pbp1n1bp/1pn3p1/1B1pPq2/3P4/P1N1B3/1P1QN1PP/5RK1 b - - 3 18
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 670
Best move: Qxf1#