Sicilian Defense: Kan, Modern, Polugaevsky Variation

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Bc5 6.Nb3 Be7 7.Qg4 g6 8.Qe2 d6 9.O-O Nd7 10.a4