Chess puzzle (Advantage)
Opening: Queens_Gambit_Accepted, Queens_Gambit_Accepted_Showalter_Variation
Moves: 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. Nc3 b5 5. Nxb5 a6 6. Nc3 Bb7 7. e3 e6 8. Bxc4
Bb4 9. O-O O-O 10. a3 Bd6 11. Re1 Ne4 12. Bd3 Nxc3 13. bxc3 Qf6 14. e4 e5 15.
Bg5 Qg6 16. Qb3 Bc6 17. d5 Bd7 18. Qb7 Bg4 19. Re3 *
Position (FEN): rn3rk1/1Qp2ppp/p2b2q1/3Pp1B1/4P1b1/P1PBRN2/5PPP/R5K1 b - - 4 19
Black to move.
Themes: Defensive Move Middlegame  
Puzzle rating: 1861
Best move: Nd7