D88 Grunfeld, Spassky Variation, Main line, 10...cd, 11.cd (1 d4 Sf6 2 c4 g6 3 Sc3 d5 4 cxd5 Sxd5 5 e4 Sxc3 6 bxc3 Lg7 7 Lc4 O-O 8 Se2)