Queen's Gambit Declined - Semi-Tarrasch - 7.Bd3
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3
White plays the queen's pawn to d4. Black plays the queen's pawn to d5. White moves the c-pawn to c4.
Black advances the king's pawn to e6. White develops the knight to c3. Black develops the knight to f6.
White transfers the knight to f3. Black pushes the c-pawn to c5. White captures on d5 with the c-pawn.
Black captures with the knight on d5. White pushes the king's pawn to e3. Black moves the knight to c6.
White develops the light-squared bishop to d3.