Chess puzzle (Advantage)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Modern_Variation
Moves: 1. d4 Nf6 2. c4 d5 3. Nc3 e6 4. Bg5 Bb4 5. e3 h6 6. Bh4 g5 7. Bg3 b6 8. Nf3 Bb7
9. Bd3 Qe7 10. O-O Nbd7 11. Bxc7 Bxc3 12. bxc3 g4 13. Nd2 Nc5 14. dxc5 Qxc7 15.
cxb6 axb6 16. cxd5 Nxd5 17. Bb5+ Ke7 18. c4 Nc3 19. Qc2 *
Position (FEN): r6r/1bq1kp2/1p2p2p/1B6/2P3p1/2n1P3/P1QN1PPP/R4RK1 b - - 2 19
Black to move.
Themes:  Middlegame  
Puzzle rating: 2023
Best move: Nxb5