Queen's Gambit Declined - Tarrasch - von Hennig-Schara gambit
1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 cxd4
White moves the queen's pawn to d4. Black moves the queen's pawn to d5. White advances the c-pawn to c4.
Black advances the king's pawn to e6. White develops the knight to c3. Black moves the c-pawn to c5.
White captures on d5 with the c-pawn. Black captures on d4 with the c-pawn.