Queen's Gambit Declined - Manhattan variation
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 Bb4
White pushes the queen's pawn to d4. Black moves the queen's pawn to d5. White pushes 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 develops the dark-squared bishop to g5. Black jumps the knight to d7. White moves the king's pawn to e3.
Black develops the dark-squared bishop to b4.