Queen's Indian Defense: Spassky System

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.e3 Bb7 5.Bd3 c5 6.O-O Be7 7.Nc3 cxd4 8.exd4 d5 9.cxd5 Nxd5 10.Ne5 O-O 11.Qg4