The 2 knights defense is somewhat OP against the French
Yeah, always makes them mess up better rook endgames, doesn't it.
13...Nxb2 counters the counter
i play kings indian attack against french
Looking at the position at 16.Ncb3, I prefer Black here for the solid pawn structure and the bishop pair. With accurate play, they should have the advantage heading into an endgame. You outplayed your opponent in the endgame though and that's what matters.