D35Queen's Gambit
Declined, Exchange, Chameleon Variation
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 Be7 6.e3 O-O 7.Bd3 Nbd7 8.Qc2 Re8 9.Nge2 Nf8 10.O-O-O