English - symmetrical - hedgehog system
1. c4 c5 2. Nf3 Nf6 3. g3 b6 4. Bg2 Bb7 5. O-O e6 6. Nc3 Be7
White moves the c-pawn to c4. Black moves the c-pawn to c5. White develops the knight to f3.
Black develops the knight to f6. White advances the g-pawn to g3. Black moves the b-pawn to b6.
White develops the light-squared bishop to g2. Black develops the light-squared bishop to b7. White castles kingside.
Black pushes the king's pawn to e6. White moves the knight to c3. Black moves the dark-squared bishop to e7.