Queen's Gambit Declined - Orthodox defence - Swiss (Henneberger) variation
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 a6
White moves the queen's pawn to d4. Black moves the queen's pawn to d5. White advances the c-pawn to c4.
Black pushes 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 plays the king's pawn to e3.
Black castles kingside. White transfers the knight to f3. Black jumps the knight to d7.
White places the rook to c1. Black pushes the a-pawn to a6.