Chess puzzle (Advantage)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Harrwitz_Attack
Moves: 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bf4 O-O 6. c5 b6 7. b4 Ba6 8. b5 Bc8
9. c6 a6 10. a4 axb5 11. axb5 Rxa1 12. Qxa1 Bd6 13. Bd2 Ne4 14. Qa7 Qf6 15.
Qxb8 e5 16. Nxd5 *
Position (FEN): 1Qb2rk1/2p2ppp/1pPb1q2/1P1Np3/3Pn3/5N2/3BPPPP/4KB1R b K - 0 16
Black to move.
Themes:  Middlegame  
Puzzle rating: 1987
Best move: Qe6