Related Openings
Gruenfeld - Spassky Variation , Main line, 13.Bd3	d4, Nf6, c4, g6, Nc3, d5, cxd5, Nxd5, e4, Nxc3, bxc3, Bg7, Bc4, O-O, Ne2, c5, O-O, Nc6, Be3, cxd4, cxd4, Bg4, f3, Na5, Bd3, Be6