Robert Ris explains how 6.Qc2 was successfully fought and why 6.e3 is the new and strong main line!
Queen’s Gambit Exchange Variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 c6 6.Qc2/6.e3
31 MIN
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