Queen's Gambit Declined: Exchange, Positional Line

1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 c6 6.e3 Bf5 7.Qf3 Bg6 8.Bxf6 Qxf6 9.Qxf6 gxf6 10.Nf3 Nd7 11.Nh4