Queen's Gambit Declined - Albin counter-gambit - Janowski variation
1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. Nbd2 f6
White advances the queen's pawn to d4. Black moves the queen's pawn to d5. White plays the c-pawn to c4.
Black plays the king's pawn to e5. White captures on e5 with the queen's pawn. Black plays the queen's pawn to d4.
White develops the knight to f3. Black develops the knight to c6. White moves the knight to d2.
Black pushes the f-pawn to f6.