Queen's Gambit Declined - Albin counter-gambit
1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3
White moves the queen's pawn to d4. Black moves the queen's pawn to d5. White advances the c-pawn to c4.
Black moves the king's pawn to e5. White captures on e5 with the queen's pawn. Black advances the queen's pawn to d4.
White develops the knight to f3.