Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Mason_Attack
Moves: 1. d4 d5 2. f4 Nc6 3. c3 Bf5 4. e3 Be4 5. Nf3 Bxf3 6. Qxf3 Qd6 7. Bd3 O-O-O 8.
O-O h5 9. b4 a6 10. a4 h4 11. h3 g5 12. b5 axb5 13. axb5 Nb8 14. Ba3 g4 15.
Qxg4+ Qe6 16. Bf5 Qxf5 17. Qxf5+ e6 18. Qf6 *
Position (FEN): 1nkr1bnr/1pp2p2/4pQ2/1P1p4/3P1P1p/B1P1P2P/6P1/RN3RK1 b - - 1 18
Black to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 867
Best move: Nxf6