Queen's Gambit Declined: Exchange Variation, Chameleon Variation
D35 · Queen’s pawn · 1.d4 Nf6 2.c4 e6 3.Nc3 d5 4.cxd5 exd5 5.Bg5 Be7 6.e3 O-O 7.Bd3 Nbd7 8.Qc2 Re8 9.Nge2 Nf8 10.O-O-O
D35 · Queen’s pawn · 1.d4 Nf6 2.c4 e6 3.Nc3 d5 4.cxd5 exd5 5.Bg5 Be7 6.e3 O-O 7.Bd3 Nbd7 8.Qc2 Re8 9.Nge2 Nf8 10.O-O-O