Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_French_Variation
Moves: 1. e4 c5 2. Nf3 e6 3. Be2 Nf6 4. d3 Be7 5. O-O O-O 6. Bg5 Nc6 7. e5 Nd5 8. Bxe7
Qxe7 9. c4 Nf4 10. g3 Nxe2+ 11. Qxe2 b6 12. Nc3 Nd4 13. Nxd4 cxd4 14. Nb5 Bb7
15. Nxd4 d5 16. Nf5 *
Position (FEN): r4rk1/pb2qppp/1p2p3/3pPN2/2P5/3P2P1/PP2QP1P/R4RK1 b - - 1 16
Black to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 1149
Best move: exf5