Queen's Gambit Declined - Tartakower (Makagonov-Bondarevsky) system
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 b6
White plays the queen's pawn to d4. Black advances 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 jumps the knight to f3. Black plays the h-pawn to h6.
White places the dark-squared bishop to h4. Black plays the b-pawn to b6.