Queen's Gambit Declined - Orthodox defence - Rauzer variation
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Qb3
White advances the queen's pawn to d4. Black advances 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 develops the dark-squared bishop to e7. White moves the king's pawn to e3.
Black castles kingside. White jumps the knight to f3. Black jumps the knight to d7.
White moves the queen to b3.