Centre game - Berger variation
1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3 Nf6
White moves the king's pawn to e4. Black advances the king's pawn to e5. White moves the queen's pawn to d4.
Black captures on d4 with the king's pawn. White captures with the queen on d4. Black develops the knight to c6.
White moves the queen to e3. Black transfers the knight to f6.