Underminig the center in the London system
Yesterday I played against a talented 16 years old german player Theo Gungl
He played the agressive Qb6 and then c5-c4 against the London system.
I think the best way to go for an advantage is an early b2-b3 and exchange the c4 pawn for the a2 pawn.
I decided to go for a center-break with e3-e4 which gave me the e4 square.
After this manover I need to prevent his freeing e6-e5 move by keeping my queen in the center.
After his e6-e5 move we exchanged many pieces and all the queenside pawns to agree a draw: