Sicilian Defense: Open, Najdorf Variation

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 Nbd7 7.Qe2 h6 8.Bh4 g6 9.f4 e5 10.fxe5 dxe5 11.O-O-O Qc7 12.Nb3 b5