,Nc3, and is a new style of the London. If you play Nbd2 you are playing to later advance the c or e pawn to open the position. In the Jobava your only pawn break is the e pawn. Just some thoughts to think on.
In the london system Where should the b1 horse go c3 or d2
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In the london system if white hasnt moved their c pawn to c3 should you move the horse to c3 or d2