I played this game yesterday in the Wakefield 4NCL Congress. The Queen’s Gambit Declined Exchange Variation is a solid opening where White often plays for a minority attack with b2-b4-b5, but this is more difficult when Black manages to exchange light squared bishops. One of the problems is that Black can often get a knight to c4 when White plays b2-b4.
I delayed b4 for this reason but my Na4 and Nb3 plan probably wasn’t right. In the end I was lucky to draw.