Queen's Gambit Declined - 5...c6
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6
White advances the queen's pawn to d4. Black plays the queen's pawn to d5. White pushes the c-pawn to c4.
Black plays the king's pawn to e6. White develops the knight to c3. Black develops the knight to f6.
White develops the dark-squared bishop to g5. Black moves the knight to d7. White plays the king's pawn to e3.
Black advances the c-pawn to c6.