London System · Line 14 of 19
vs 1...d5 2...c6 3...Qb6
With ...c6, Black opens the queen's path to b6 to hit b2. Here Qc1 is the simple answer. It guards b2 and keeps your bishop backed up. Then c4 and c5 push the queen away.
As always.
Pawn to d4.
