ECO D24 · Queen's Gambit Accepted
Queen's Gambit Accepted: Bogoljubow Defense
The position after 1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.Nc3 a6 5.e4.
1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Nc3 a6 5. e4
Queen's Gambit Accepted: Bogoljubow Defense is filed under ECO D24, a variation of Queen's Gambit Accepted. It is the position after 1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.Nc3 a6 5.e4 — 9 half-moves in, with Black to move. Named theory ends here; beyond this the position is yours to work out.