Chess puzzle (Crushing)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Chigorin_Defense
Moves: 1. d4 d5 2. c4 Nc6 3. Nc3 Nf6 4. Bg5 e6 5. cxd5 exd5 6. e3 Qd6 7. a3 Bd7 *
Position (FEN): r3kb1r/pppb1ppp/2nq1n2/3p2B1/3P4/P1N1P3/1P3PPP/R2QKBNR w KQkq - 1 8
White to move.
Themes:  Opening  
Puzzle rating: 1376
Best move: Nb5