English - four knights - Nimzovich variation
1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. e4
White moves the c-pawn to c4. Black plays the king's pawn to e5. White develops the knight to c3.
Black develops the knight to c6. White jumps the knight to f3. Black moves the knight to f6.
White advances the king's pawn to e4.