Sicilian Defense: Open, Najdorf, Opočenský, Traditional Line

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be7 8.O-O O-O 9.Be3 Be6 10.f4 exf4 11.Bxf4 Nc6 12.Kh1