Queen's Gambit Declined
1. Orthodox Defence
1.1 Orthodox Defence, 7...Rc1
1.1.1 Orthodox Defence, Bd3 line
1.1.1.1 Orthodox Defence, classical variation (i.e. Casablanca system)
1.1.2 Orthodox, Rubinstein Attack
1.1.2.1 Orthodox, Rubinstein Attack, main line (white)
1.1.2.1 Orthodox, Rubinstein Attack, main line (black)
1.2 Orthodox Defense, Rubinstein variation