Chess puzzle (Advantage)
Opening: Queens_Gambit_Accepted, Queens_Gambit_Accepted_Old_Variation
Moves: 1. d4 d5 2. c4 dxc4 3. e3 e6 4. Bxc4 Nf6 5. Nf3 Bb4+ 6. Bd2 Bxd2+ 7. Nbxd2 O-O
8. O-O Nc6 9. Bb3 Re8 10. Bc2 e5 11. Nb3 Bg4 12. h3 Bxf3 13. Qxf3 e4 14. Qg3 g6
15. Qh4 a6 16. Nc5 b6 17. Nxe4 *
Position (FEN): r2qr1k1/2p2p1p/ppn2np1/8/3PN2Q/4P2P/PPB2PP1/R4RK1 b - - 0 17
Black to move.
Themes:  Middlegame  
Puzzle rating: 1136
Best move: Nxe4