English - Bremen system - Keres variation
1. c4 e5 2. Nc3 Nf6 3. g3 c6
White pushes the c-pawn to c4. Black plays the king's pawn to e5. White develops the knight to c3.
Black develops the knight to f6. White advances the g-pawn to g3. Black moves the c-pawn to c6.