D24Queen's Gambit
Accepted, 4.Nc3
1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.Nc3
D24Queen's Gambit
Accepted, Bogolyubov Variation
1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.Nc3 a6 5.e4